supplicate vs quest

supplicate is not a noun while quest is a noun.

Word	Noun	Adjective	Verb	Adverb
supplicate	No	No	Yes	No
quest	Yes	No	Yes	No

As verbs, quest is a hypernym of supplicate; that is, quest is a word with a broader meaning than supplicate:

Other hypernyms of supplicate include ask for, bespeak, call for, request.

supplicate (noun)	quest (noun)
	the act of searching for something
	a search for an alternative that meets cognitive criteria

supplicate (verb)	quest (verb)
ask humbly (for something)	seek alms, as for religious purposes
ask for humbly or earnestly, as in prayer	express the need or desire for
make a humble, earnest petition	bark with prolonged noises, of dogs
	search the trail of (game)
	make a search (for)