human vs manus

human and manus both are nouns.

Word	Noun	Adjective	Verb	Adverb
human	Yes	Yes	No	No
manus	Yes	No	No	No

human (noun)	manus (noun)
any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage	the (prehensile) extremity of the superior limb

human (adjective)	manus (adjective)
having human form or attributes as opposed to those of animals or divine beings
characteristic of humanity
relating to a person