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Cyan

/ˈsaɪən/noun

A greenish-blue colour, and one of the three subtractive primaries used in printing.

The Greek roots

κύανος
kýanos
dark blue enamel, lapis

Literally: dark blue stone

Follow a root:κύανος5 words

The story of the word

κύανος named a material before it named a colour: a dark blue glass paste or lapis lazuli, used as inlay on Mycenaean daggers and on the frieze of a palace in the Odyssey. The Homeric adjective κυάνεος is applied to hair, eyebrows and storm clouds, which is why translators argue over whether it means blue or simply very dark. The precise printing sense is twentieth-century, arriving with four-colour process work. Cyanide got its name from a different direction, through the pigment Prussian blue.

How it travelled
Ancient Greek → Latin → English
First recorded
19th century

Same family

cyanidecyanotypecyanobacteria

In a sentence

The proof came back with a cyan cast across the sky.

Built on the same root

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