deviate vs aberrate

deviate is a noun but aberrate is not a noun.

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

As verbs, aberrate is a hyponym of deviate; that is, aberrate is a word with a more specific, narrower meaning than deviate:

Other hyponyms of deviate include belie, contradict, negate.

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

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

deviate (verb)	aberrate (verb)
turn aside; turn away from	diverge or deviate from the straight path; produce aberration
cause to turn away from a previous or expected course	diverge from the expected
be at variance with; be out of line with