human vs pes

human and pes both are nouns.

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

human (noun)	pes (noun)
any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage	the part of the leg of a human being below the ankle joint

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