fiducial vs trusty

fiducial is not a noun while trusty is a noun.

Word	Noun	Adjective	Verb	Adverb
fiducial	No	Yes	No	No
trusty	Yes	Yes	No	No

fiducial (noun)	trusty (noun)
	a convict who is considered trustworthy and granted special privileges

fiducial (adjective)	trusty (adjective)
relating to or of the nature of a legal trust (i.e. the holding of something in trust for another)	worthy of trust or belief
used as a fixed standard of reference for comparison or measurement
based on trust