commutate vs change by reversal

commutate and change by reversal both are verbs.

Word	Noun	Adjective	Verb	Adverb
commutate	No	No	Yes	No
change by reversal	No	No	Yes	No

As verbs, change by reversal is a hypernym of commutate; that is, change by reversal is a word with a broader meaning than commutate:

commutate: reverse the direction of (an alternating electric current) each half cycle so as to produce a unidirectional current
change by reversal: change to the contrary

Other hypernyms of commutate include reverse, turn.

commutate (verb)	change by reversal (verb)
reverse the direction of (an alternating electric current) each half cycle so as to produce a unidirectional current	change to the contrary