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Opal

/ˈoʊpəl/noun

A hydrated silica gemstone that flashes shifting colours as it moves in the light.

The Greek roots

ὀπάλλιος
opállios
opal

Literally: stone

The story of the word

The stone travelled further than most words. Sanskrit upala meant simply 'stone'; Greek made ὀπάλλιος of it, Latin opalus, and English had opal by the end of the sixteenth century. Pliny describes the fire inside it as every other gem's colour gathered into one, which is roughly what a gemmologist says today with different vocabulary.

How it travelled
Sanskrit → Ancient Greek → Latin → French → English
First recorded
16th century

Same family

opalescentopaline

In a sentence

The opal looked grey until she turned it, and then it went green and orange.

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