corroborate

Meanings

1. 1
   verb

   to support with evidence, authority, or make more certain or confirm

   My research corroborates their claims.

Simplified etymology

Corroborate comes from Latin corroborare “strengthen,” based on robur “strength.” It was first used for making something physically stronger, then developed its modern sense of strengthening an account or claim with supporting evidence.

First attested in the 1530s; borrowed from Latin corrōborātus (“strengthened”), perfect passive participle of corrōborō (“to support, corroborate”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from con- (“together”) + rōborō (“to strengthen”), from rōbur, rōboris (“strength”). Regular participial usage of the adjective up until Early Modern English, otherwise archaic.

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