viola da braccio vs viol

viola da braccio and viol both are nouns.

Word	Noun	Adjective	Verb	Adverb
viola da braccio	Yes	No	No	No
viol	Yes	No	No	No

As nouns, viol is a hypernym of viola da braccio; that is, viol is a word with a broader meaning than viola da braccio:

viola da braccio: a member of the viol family with approximately the range of a viola
viol: any of a family of bowed stringed instruments that preceded the violin family

viola da braccio (noun)	viol (noun)
a member of the viol family with approximately the range of a viola	any of a family of bowed stringed instruments that preceded the violin family