Etymology of the English word thesaurus
the English word
thesaurusderived from the Latin word
thesaurus (treasure chamber, vault, repository)
derived from the Greek word
thesauros, θησαυρός (a deposit; wealth )
Date
The earliest known usage of thesaurus in English dates from the 18th century.
Cognates
French
thésaurer, German
Thesaurus, Norwegian
tesaurusUsage
Word found in Modern English