ski vs locomote

ski is a noun but locomote is not a noun.

Word	Noun	Adjective	Verb	Adverb
ski	Yes	No	Yes	No
locomote	No	No	Yes	No

As verbs, locomote is a hypernym of ski; that is, locomote is a word with a broader meaning than ski:

Other hypernyms of ski include go, move, travel.

ski (noun)	locomote (noun)
narrow wood or metal or plastic runners used in pairs for gliding over snow

ski (verb)	locomote (verb)
move along on skis	change location; move, travel, or proceed, also metaphorically