hound vs staghound

hound and staghound both are nouns.

Word	Noun	Adjective	Verb	Adverb
hound	Yes	No	Yes	No
staghound	Yes	No	No	No

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

hound: any of several breeds of dog used for hunting typically having large drooping ears
staghound: a large heavy hound formerly used in hunting stags and other large game; similar to but larger than a foxhound

hound (noun)	staghound (noun)
any of several breeds of dog used for hunting typically having large drooping ears	a large heavy hound formerly used in hunting stags and other large game; similar to but larger than a foxhound
someone who is morally reprehensible

hound (verb)	staghound (verb)
pursue or chase relentlessly