CORROBORATE

confirm, corroborate, sustain, substantiate, support, affirm

(verb) establish or strengthen as with new evidence or facts; “his story confirmed my doubts”; “The evidence supports the defendant”

validate, corroborate

(verb) give evidence for

corroborate, underpin, bear out, support

(verb) support with evidence or authority or make more certain or confirm; “The stories and claims were born out by the evidence”

Source: WordNet® 3.1

Etymology

Verb

corroborate (third-person singular simple present corroborates, present participle corroborating, simple past and past participle corroborated)

(transitive) To confirm or support something with additional evidence; to attest or vouch for.

• I. Taylor

(transitive) To make strong; to strengthen.

• I. Watts

Source: Wiktionary

Cor*rob"o*rate (kr-rb"-rt), v. t. [imp. & p. p. Corroborated (-r`td); p. pr. & vb. n. Corroborating (-r`tng). ] Etym: [L. corroboratus, p. p. of corroborare to corroborate; cor- + roborare to strengthen, robur strength. See Robust.]

1. To make strong, or to give additional strength to; to strengthen. [Obs.] As any limb well and duly exercised, grows stronger, the nerves of the body are corroborated thereby. I. Watts.

2. To make more certain; to confirm; to establish. The concurrence of all corroborates the same truth. I. Taylor.

Cor*rob"o*rate (-rt), a.

Definition: Corroborated. [Obs.] Bacon.

Source: Webster’s Unabridged Dictionary 1913 Edition