palm vs manus

palm and manus both are nouns.

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

palm (noun)	manus (noun)
the inner surface of the hand from the wrist to the base of the fingers	the (prehensile) extremity of the superior limb
an award for winning a championship or commemorating some other event
any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves
a linear unit based on the length or width of the human hand

palm (verb)	manus (verb)
touch, lift, or hold with the hands