viola d'amore vs viol

viola d'amore and viol both are nouns.

Word	Noun	Adjective	Verb	Adverb
viola d'amore	Yes	No	No	No
viol	Yes	No	No	No

As nouns, viol is a hypernym of viola d'amore; that is, viol is a word with a broader meaning than viola d'amore:

viola d'amore: viol that is the tenor of the viol family
viol: any of a family of bowed stringed instruments that preceded the violin family

viola d'amore (noun)	viol (noun)
viol that is the tenor of the viol family	any of a family of bowed stringed instruments that preceded the violin family