The terms artists, makers and conservators use, defined plainly, with where each word comes from.
Greek · alabastros, perhaps from Egyptian
A soft, fine-grained stone, pale enough to carve with hand tools and thin enough, cut in sheets, to let light pass through it. Medieval churches used it as window panes before glass was common. It is the one stone light can enter.
Italian · at first attempt
A painting completed in a single session, wet paint applied over wet paint with no waiting between layers. Each stroke stays where it lands, so the whole method rests on commitment.
Greek · anamorphōsis, a forming anew
An image distorted until it reads as a smear, then restored when seen from one fixed point or reflected in a curved mirror. The picture only exists for the viewer standing in the right place.
Italian · arabesco, in the Arab style
Ornament built from scrolling stems, leaves and tendrils that curl, divide and return without ever ending. It grew from Islamic art's command of pattern that implies infinity on a finite surface. Ballet later borrowed the word for a line of the body that seems to continue past the fingertips. A line drawn so it never has to stop.
French · bas, low + relief, raised work
Sculpture that barely rises from its background. The figures stay bound to the ground they are carved from, emerging just enough to catch light and cast shallow shadows, then stop.
Old French · burnir, to make shine
To polish a surface by rubbing it under pressure with a smooth hard tool until it reflects light. No coating is added. The shine comes from the material rearranging itself under force.
Italian · small piece of paper
A painted slip of paper within a painting, bearing the artist's name or a date. It looks pinned or pasted to the surface, yet it is made of the same paint as the sky behind it.
Italian · cartone, a large sheet of paper
The full-scale preparatory drawing for a painting, fresco or tapestry, made at the exact size of the finished work. Its outlines were pricked with a pin and dusted through with charcoal, printing the design onto the wall in dotted lines. The rehearsal for a masterpiece became the word for a joke.
Italian · chiaro, light + oscuro, dark
The use of strong contrasts between light and dark to model three-dimensional form. Candlelight rakes across a surface and everything it misses ceases to exist. The painting decides what you are allowed to see.
French · cloison, partition
Enamel work in which thin wires of gold or copper are fixed to a metal surface, forming small cells that are filled with coloured glass paste and fired. The wires keep every colour inside its own boundary, so nothing bleeds and nothing mixes. Each colour lives in its own small room of gold.
Spanish · cochinilla, the scale insect
Crimson made from the dried bodies of scale insects farmed on cactus pads, around seventy thousand of them to a pound of dye. For three centuries it was Mexico's second most valuable export after silver, and the reddest red Europe could buy. It is still in lipstick, listed quietly as carmine.
Greek · kolophon, summit, finishing touch
The note at the end of a manuscript or early printed book naming who made it, where, and when, sometimes adding the scribe's complaint about cold hands or bad light. For a thousand years books signed off at the back; the title page is the colophon's descendant, migrated to the front. Publishers still call their emblem a colophon. The beginning of the book began as its ending.
Italian · counterpose
A pose in which the weight falls on one leg, tilting hip against shoulder in opposite directions. The body finds balance through asymmetry. Stillness made from opposing forces.
French · from craqueler, to crack
The fine network of cracks that forms in paint or varnish as it ages. The surface records every expansion, every contraction. Time writes in fractures.
English · cross + hatch, from French hacher, to chop
Shadow built from sets of parallel lines laid across one another at an angle. One set makes a tone; each new direction darkens it. In an engraving, every grey is counted in lines.
after Damascus
A fabric whose pattern is woven into its structure rather than printed on its surface: satin figures on a matte ground, usually in a single colour. The motif appears and disappears as light moves across the cloth, because pattern and ground are the same threads facing different ways. The pattern lasts as long as the weave itself.
Latin · efflorescere, to flower out
A white crystalline bloom that forms on brick, plaster and paint as water moves through the wall, carrying dissolved salts to the surface and leaving them behind as it dries. Conservators read it the way doctors read a symptom: the mark tells them where the water has been. The name means flowering. Walls bloom in salt.
Greek · enkaustikos, to burn in
Pigment suspended in heated beeswax, fused to the surface with flame. One of the oldest painting methods. The colour is sealed inside something that once was alive.
Latin · filum and granum, thread and grain
Ornament built from fine threads of gold or silver, twisted, curled and soldered into open lace. The metal does the work cloth usually does, holding air inside pattern. Gold, spun until it is mostly air.
English · fore, in front + shorten
Drawing a form that points toward or away from the viewer so its length collapses into depth. A raised foot can loom larger than the face. Proportion follows the angle of sight.
English · origin uncertain; possibly from the colour of fox fur
Small brown spots that bloom across old paper as fungi or iron salts react with moisture over decades. The paper remembers every room it lived in. Foxing is the autobiography of storage.
Italian · fresh
Pigment applied to wet lime plaster, becoming part of the wall as it dries. Painting and surface end up as one material.
Italian · from Latin gypsum, chalk
A white chalky ground applied to canvas or wood before any painting begins. It seals the surface, takes the tooth, and waits. Every painting you have ever seen started as gesso and nothing else.
Old English · gyldan, to cover with gold
Gold leaf pressed onto a prepared surface and burnished until it reflects light like metal. The gold is real. The surface becomes something between painting and jewellery.
Italian · a day's work
The patch of fresh plaster a fresco painter could finish before it dried: one day's reach, one day's decisions. The seams between one day and the next are still visible on ceilings finished five centuries ago, if you know where to look. Every fresco is a calendar of the days it took.
Middle English · from glas, glass
A thin, transparent layer of paint over a dried opaque layer beneath. Light passes through, hits the underlayer, and returns carrying both colours at once.
French · from Italian guazzo, water paint
Opaque watercolour. Where watercolour lets the paper glow through, gouache covers it completely. A matte, velvety surface with no shine and no transparency.
French · from gris, grey
A painting executed entirely in shades of grey. Colour is refused. What remains is light, value, and the discipline of working without it.
Latin · fear of empty space
The compulsion to fill a surface completely, ornament crowding ornament until no ground shows. The name borrows the old claim that nature abhors a vacuum; some art abhors it more. Every blank space is held off on purpose.
Italian · from impastare, to knead
Paint applied so thickly it stands in relief from the surface. The brush or knife leaves its track. The painting becomes an object before it becomes a picture.
Italian · first layer of colour
A transparent toned wash laid over the white ground before any painting begins. It kills the glare of bare gesso and sets the key for every colour that follows. The painting starts before the painting starts.
Greek · indikon, from India
A blue dye drawn from fermented leaves, worked on every inhabited continent for at least six thousand years. The vat liquor is green; the blue only arrives as the cloth meets the air and the dye oxidises, deepening with every dip. The colour happens in the air. Every pair of jeans on earth wears it.
Italian · intagliare, to cut into
An image cut down into a surface instead of raised from it: the exact opposite of relief. Gem cutters have carved signets this way for five thousand years, working in reverse and in negative so the design stamps out positive and true. The artwork is the hollow. The image is what it leaves behind.
Italian · intonacare, to coat
The final, finest coat of lime plaster, trowelled smooth and painted the same day, while still wet. Pigment sinks into the curing lime, so the colour sets inside the wall instead of resting on it. Every layer beneath is preparation. The intonaco is the painting.
English · after jasper, a fine-grained stone
Unglazed stoneware perfected by Josiah Wedgwood in the 1770s, stained through the body and dressed with white relief figures applied by hand. Matte and dense, like a carved cameo.
Japanese · kin, gold + tsugi, joinery
Broken pottery repaired with gold. The fracture is filled with lacquer dusted in metal and made into the most visible thing on the surface. Damage becomes decoration.
Latin · lacuna, a gap or pool
A missing section in a painting, fresco, or manuscript where the surface has been lost to damage, decay, or time. Conservators document the gap and leave it unfilled, so the absence becomes part of the record.
Latin · lapis, stone + lazuli, from Arabic lazaward, blue
A semi-precious stone ground into ultramarine, the most expensive pigment in the medieval world. It was reserved for the robes of the Virgin Mary. Blue that had to be earned.
English · from Latin lustrare, to illuminate
A thin metallic film fired onto a glaze from copper and silver compounds in a smoky, low-oxygen kiln. Turned in the light, the surface flashes gold and copper.
Italian · after Majorca, the island on the trade route
Earthenware dipped in a tin glaze that fires to an opaque white, a canvas on pottery. Colour is brushed onto the raw glaze, which drinks each stroke and allows no correction. Renaissance Italy painted its myths onto dinner plates, and called the best of them istoriato: storied.
French · marqueter, to inlay
The art of making pictures from thin sheets of wood veneer, cut and fitted so tightly that the grain itself does the shading. Walnut becomes shadow, sycamore becomes light, and the direction of the grain turns a flat leaf three-dimensional. Painting, with trees.
Latin · remember that you will die
An object or image placed in a composition as a reminder of mortality. A fly on a petal. An hourglass running low. The painter hides a small death inside the beauty and waits for you to find it.
Latin · mosaicum, of the Muses
An image assembled from small pieces of stone, glass, or tile set into mortar. Each fragment is a single flat colour. The picture exists only in the assembly.
Italian · from Latin nigellus, blackish
A black alloy of silver, copper, lead and sulphur, fused into lines engraved in metal so the design reads black against bright silver. The chemistry is tarnish, made on purpose and put only where the artist wants it. Renaissance goldsmiths inked their niello plates onto paper to check the work; those proofs helped invent the printed picture.
Italian · not finished
A work left visibly incomplete, the making still showing in bare ground and open marks. Some were abandoned to time or money; some were stopped on purpose. Finished paintings show you a picture. Unfinished ones show you the painter.
Greek · ochra, from ochros, pale yellow
Earth pigment. Iron oxide bound in clay, dug from the ground and used since before recorded history. The first colour humans chose to mark a surface with.
Greek · palimpsestos, scraped again
A surface that has been scraped clean and written over, but the earlier text ghosts through. Nothing is fully erased. Every surface remembers what it carried before.
Greek · pathos, suffering, experience
The quality in a work that moves the viewer to pity, sorrow, or tenderness. It lies in the artist's power to make you feel an event from the outside.
Latin · shallow dish; later, surface film
The surface a material earns over time. Copper turns green. Bronze darkens. Wood silvers. What ages well does not stay the same.
Italian · from pentirsi, to repent
A trace of earlier painting visible beneath the surface of a canvas, where the artist changed their mind.
Latin · pigmentum, colouring matter
Colour in its raw state. Powder ground from stone, earth, mineral, or bone, before oil or water gives it a way to move across a surface.
French · pointillé, dotted, from point
Small dots of thick, pale paint laid over darker passages to catch the light. Vermeer scattered them across bread crusts, wicker and glazed clay, so surfaces glitter from across the room.
French · from point, dot
Painting built from tiny dots of pure colour placed side by side. The eye does the mixing. Stand close and you see only dots. Step back and a world assembles.
Dutch · pronk, display + stilleven, still life
The showpiece still life of the Dutch Golden Age: Chinese porcelain, Venetian glass, silver and imported fruit arranged to display wealth. A half-peeled lemon proved the painter's skill.
French · provenir, to come from
The documented history of ownership. Who made it, who sold it, who kept it, where it hung. The life a work of art lived when no one was looking at it.
English · punch, a metal stamp + work
Patterns struck into gold leaf with small metal punches, each blow leaving one ring, star or petal. Hundreds of marks make a halo glitter in candlelight, and every workshop's tools left their own signature.
Japanese · ease, enjoyment
Japanese pottery pulled from the kiln while still glowing and left to cool in the open air. The shock cracks the glaze into a web no one plans and no one can repeat. The potter makes the vessel. The fire makes the finish.
Latin · rubrica, red earth
The practice of writing a manuscript's headings, initials and instructions in red while the body text ran in black. The red told the reader how to use the page: where a section began, what was spoken aloud, which days were holy. Red letters are why they are called red-letter days.
Latin · sanguis, blood
Red chalk, an iron-rich earth cut into sticks and used for drawing since the Renaissance. It warms under the hand and gives a line somewhere between blood and rust, which is why the old masters reached for it whenever they drew the body. Flesh, drawn in the colour of what moves beneath it.
Italian · from sfumare, to vanish like smoke
A technique of softening transitions between tones so that edges dissolve rather than end. Forms emerge from atmosphere the way a figure appears through fog.
Italian · sgraffiare, to scratch
A surface scratched through to reveal a different colour beneath. The image is drawn into the surface, and the tool works by taking away.
Italian · terra di Siena, earth of Siena
An iron-rich clay dug for centuries from the hills around Siena, yellow-brown as it comes out of the ground. Roast it and the iron dehydrates, turning the same earth a deep red-brown: raw sienna and burnt sienna, two pigments from one ground. The only difference between them is fire.
French · after Etienne de Silhouette, 1759
A form reduced to its outline and filled with solid dark. Everything inside disappears. What remains is the edge, and the edge turns out to be enough.
Italian · from Sinope, a city on the Black Sea where the pigment was mined
The red earth drawing hidden beneath a fresco, visible only when the painted surface is detached from the wall. The artist's first thought, buried under the finished work for centuries.
Italian · smalto, enamel
Opaque coloured glass made for mosaic, melted with metal oxides, poured into flat slabs and cut by hand, so no two pieces fracture alike. Gold smalti seal a sheet of beaten gold between a glass base and a thin film of clear glass. The shimmer on a Byzantine ceiling is bullion, locked in glass.
Latin · spoils, things stripped or reused
Architectural fragments taken from older buildings and set into newer ones. A Roman column in a medieval church wall. A carved capital holding up a doorway it was never made for. The past built into the present.
Italian · spolverare, to dust
Charcoal dust pounced through the pinpricked outlines of a cartoon, printing the design on fresh plaster as a dotted line. The painter joined the dots before the plaster dried, then the dust was flicked away. Under many frescoes the dots remain. The first draft was made of powder.
Italian · from Lombardic stukki, crust
A plaster of lime, sand and marble dust, worked onto walls while wet and polished or carved before it sets. In skilled hands it imitates stone so completely that palaces used it in place of marble. The trick lasted. Whole cities are still wearing it.
Latin · temperare, to mix in proportion
Pigment bound with egg yolk, applied to gessoed wood in thin precise layers. It dries fast and forgives nothing. Every stroke is a decision that cannot be blended away.
Latin · tenebrae, darkness
Chiaroscuro pushed to its extreme. Nearly the entire canvas is swallowed by darkness, and a single passage of violent light rescues one fragment from the black. Everything beyond the light reads as absence.
Italian · terra cotta, baked earth
Clay fired at a low temperature and left unglazed, its colour coming from the iron in the earth it was dug from. It has roofed houses, carried water and held gardens for ten thousand years, and it still warms to the hand. The colour comes from the ground itself, with no pigment added.
Italian · terrazzo, terrace
Flooring made by scattering marble chips into wet cement or lime, then grinding the set surface flat and polishing it. Venetian workers invented it from the offcuts of grander jobs, paving their own terraces with the broken marble rich clients paid to have cut away. A floor made from what other floors threw away.
Latin · from Greek tessares, four
A single small cube of stone, glass or fired clay, the unit a mosaic is built from. Each one is set by hand into wet mortar, at a slight angle, so the finished surface catches light unevenly and seems to move. One is a fragment. A hundred thousand are a painting that cannot fade.
Greek · triptykhos, three-fold
A work in three panels, hinged so the outer two fold inward over the centre. One image that only exists when it is opened. Closure is part of its design.
French · to deceive the eye
A painting so precisely rendered it is mistaken for the real thing. A nail that casts a shadow on a wall. A curtain that asks to be pulled aside.
English · from the Dutch and Italian workshop tradition
The first full layer of a painting, laid in monochrome, where light, shadow and composition are settled before any colour arrives. Colour is then glazed over it in thin transparent layers, borrowing its depth from the grey or brown beneath. Every painting is two paintings. You are only shown the second.
Latin · emptiness, from vanus, empty
A still life arranged to remind the viewer that all earthly things end. A skull beside a peeled lemon. A candle almost out. Beauty and its expiry in the same frame.
Italian · veduta, a view
A detailed, recognisable view of a city, painted or etched for travellers who wanted to take it home. Before photography, vedute were the souvenirs of the Grand Tour.
Italian · from velo, veil
A thin, milky, translucent layer of lighter paint brushed over a darker passage beneath. It softens without erasing. The earlier colour survives, muted, as though seen through cloth.
Old French · velin, from Latin vitulus, calf
Fine parchment made from calfskin, scraped, stretched and smoothed until it is thin, pale and very slightly translucent. It outlasts paper by centuries and takes ink without ever quite forgetting it was skin. Almost everything that survives from the medieval world survives on vellum.
Old French · vert-de-gris, green of grey
The green patina that forms on copper, brass, and bronze when exposed to air and moisture. It grows on the metal over decades, the surface slowly rewriting itself.
French · after Jean-Baptiste Glomy, 18th-century framemaker
Glass gilded from behind and engraved through the gold to reveal a design. The image is sealed between the metal and the surface, protected by the thing it decorates.
Japanese · wabi, austere beauty + sabi, the bloom of time
An aesthetic rooted in impermanence and imperfection. The crack in the glaze and the uneven rim belong to the object's beauty, which lives in what time and use have done to the surface.
English · wood + cut
A print taken from a wooden block carved away around the design, so only the raised lines carry ink. Every white in the image was cut out by hand. The picture is what the knife left standing.
No terms match.