pelt vs bearskin

pelt and bearskin both are nouns.

Word	Noun	Adjective	Verb	Adverb
pelt	Yes	No	Yes	No
bearskin	Yes	No	No	No

As nouns, bearskin is a hyponym of pelt; that is, bearskin is a word with a more specific, narrower meaning than pelt:

pelt (noun)	bearskin (noun)
body covering of a living animal	tall hat; worn by some British soldiers on ceremonial occasions
the dressed hairy coat of a mammal	the pelt of a bear

pelt (verb)	bearskin (verb)
attack and bombard with or as if with missiles
cast, hurl, or throw repeatedly with some missile
rain heavily