hosiery vs stocking

hosiery and stocking both are nouns.

Word	Noun	Adjective	Verb	Adverb
hosiery	Yes	No	No	No
stocking	Yes	No	No	No

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

hosiery: socks and stockings and tights collectively (the British include underwear)
stocking: close-fitting hosiery to cover the foot and leg; come in matched pairs (usually used in the plural)

Other hyponyms of hosiery include sock, leotards, tights.

hosiery (noun)	stocking (noun)
socks and stockings and tights collectively (the British include underwear)	the activity of supplying a stock of something
	close-fitting hosiery to cover the foot and leg; come in matched pairs (usually used in the plural)