from
The Collaborative International Dictionary of English v.0.48
Corroborate \Cor*rob"o*rate\ (k?r-r?b"?-r?t), v. t. [imp. & p.
p. {Corroborated} (-r?`t?d); p. pr. & vb. n. {Corroborating}
(-r?`t?ng). ] [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.]
[1913 Webster]
As any limb well and duly exercised, grows stronger,
the nerves of the body are corroborated thereby.
--I. Watts.
[1913 Webster]
2. To make more certain; to confirm; to establish.
[1913 Webster]
The concurrence of all corroborates the same truth.
--I. Taylor.
[1913 Webster]