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Cinnabar

/ˈsɪnəbɑːr/noun

Mercury sulphide, a brilliant red mineral and the source of the pigment vermilion.

The Greek roots

κιννάβαρι
kinnábari
red mineral, vermilion

Literally: the red stuff called kinnabari

The story of the word

The word is Greek but not Greek in origin; it looks like an eastern borrowing, and Persian and Semitic sources have both been argued without a winner. Pliny complained that traders used one name for two unrelated red goods, this ore and the plant resin called dragon's blood, and that painters were being cheated as a result. Roast the ore and the sulphur burns off, leaving mercury running out of the furnace, which is how Rome got its supply from convict labour at Almadén.

How it travelled
Eastern source → Ancient Greek → Latin → Old French → English
First recorded
14th century

In a sentence

The lacquer box is cinnabar red, layer on layer, then carved.

Cinnabar in the tomb paintings has darkened where the light reached it.

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