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Words & WritingGreekEnglish

Thesaurus

/θɪˈsɔːrəs/noun

A book that groups words by meaning so a writer can find alternatives.

The Greek roots

θησαυρός
thēsaurós
treasure, storehouse

Literally: treasure store

The story of the word

In Greek a θησαυρός is a strongroom. The small stone treasuries at Delphi, where cities kept their offerings, are θησαυροί. English used the word for any storehouse of learning until Peter Mark Roget published his in 1852 and the sense narrowed to one kind of book; Roget was a physician who had kept his word lists for forty-seven years, partly as a way of holding his own depression at bay.

How it travelled
Ancient Greek → Latin → English

The same roots elsewhere

Other languages reached for exactly the same Greek pieces.

Same family

treasuretreasurytreasurer

In a sentence

Reaching for a thesaurus mid-sentence usually shows in the finished paragraph.

Built on the same root

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