corroborate

verb

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

   “The concurrence of all […]corroborates the same truth.”

   “First, the fireman may be killed. Second, he may not notice the signal at all. Third, in any case he will loyally corroborate his driver and the good old jury will discount that.”

2. (transitive)To make strong; to strengthen.

   “As any limb well and duly exercised, grows stronger, the nerves of the body are corroborated thereby.”

adj

1. (obsolete)Corroborated.

   “There is no Truſting to the Force of Nature, nor to the Brauery of Words; except it be Corroborate by Cuſtome.”

2. (obsolete)Vigorous, grown strong.

   “But how unjust this traducement is (if you will reduce things from popularity of opinion to measure of reason) may appear in that we see men are more curious what they put into a new vessel than into a vessel seasoned, and what mould they lay about a young plant than about a plant corroborate; […]”