handwear vs muff

handwear and muff both are nouns.

Word	Noun	Adjective	Verb	Adverb
handwear	Yes	No	No	No
muff	Yes	No	Yes	No

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

Other hyponyms of handwear include glove.

handwear (noun)	muff (noun)
clothing for the hands	(sports) dropping the ball
	a warm tubular covering for the hands

handwear (verb)	muff (verb)
	make a mess of, destroy or ruin
	fail to catch, as of a ball