Circumstantiate

v. t.	1.	To place in particular circumstances; to invest with particular accidents or adjuncts. If the act were otherwise circumstantiated, it might will that freely which now it wills reluctantly. - Bramhall.
	2.	To prove or confirm by circumstances; to enter into details concerning. Neither will time permint to circumstantiate these particulars, which I have only touched in the general. - State Trials (1661).

Verb

1.

circumstantiate - give circumstantial evidence for

adduce, affirm, anatomize, atomize, attest, authenticate, back, back up, bear out, bolster, buttress, certify, cite, confirm, corroborate, descend to particulars, detail, document, enter into detail, fortify, give full particulars, instance, itemize, particularize, probate, prove, ratify, reinforce, specify, spell out, strengthen, substantiate, support, sustain, undergird, uphold, validate, verify, warrant