depart vs deviate

depart is not a noun while deviate is a noun.

Word	Noun	Adjective	Verb	Adverb
depart	No	No	Yes	No
deviate	Yes	Yes	Yes	No

As verbs, deviate is a hypernym of depart; that is, deviate is a word with a broader meaning than depart:

Other hypernyms of depart include divert.

As verbs, depart and deviate are synonyms defined as:

Other synonyms of depart include diverge, vary.

depart (noun)	deviate (noun)
	a person whose behavior deviates from what is acceptable especially in sexual behavior

depart (adjective)	deviate (adjective)
	markedly different from an accepted norm

depart (verb)	deviate (verb)
go away or leave	turn aside; turn away from
depart for someplace	cause to turn away from a previous or expected course
wander from a direct or straight course	be at variance with; be out of line with
move away from a place into another direction
remove oneself from an association with or participation in
be at variance with; be out of line with