morals vs ethical motive

morals and ethical motive both are nouns.

Word	Noun	Adjective	Verb	Adverb
morals	Yes	No	No	No
ethical motive	Yes	No	No	No

As nouns, morals and ethical motive are synonyms defined as:

Other synonyms of morals include ethics, morality.

morals (noun)	ethical motive (noun)
motivation based on ideas of right and wrong	motivation based on ideas of right and wrong