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brilliancybrilliantinebrilliantlybrilliantnessbrillooverbrilliantsuperbrillianttrilliantultrabrilliantunbrilliant
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Simplified etymology
Brilliant entered English in the late 17th century from French brillant, meaning “shining.” The French word probably derives ultimately from Latin beryllus, “beryl.”
Etymology
Borrowed from French brillant (late 17th century), present participle of the verb briller, from Italian brillare, possibly from Latin berillus, beryllus (“a beryl, gem, eyeglass”), from Ancient Greek βήρυλλος (bḗrullos, “beryl”).
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