cavalryman vs hussar

cavalryman and hussar both are nouns.

Word	Noun	Adjective	Verb	Adverb
cavalryman	Yes	No	No	No
hussar	Yes	No	No	No

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

cavalryman: a soldier mounted on horseback
hussar: a member of a European light cavalry unit; renowned for elegant dress

Other hyponyms of cavalryman include cuirassier, dragoon, lancer, Rough Rider.

cavalryman (noun)	hussar (noun)
a soldier mounted on horseback	a member of a European light cavalry unit; renowned for elegant dress
a soldier in a motorized army unit