canine (n.) Look up canine at Dictionary.com
"pointed tooth," late 14c., from L. caninus "of the dog," gen. of canis "dog," from PIE base *kwon- "dog" (cf. Gk. kyon, O.E. hund, O.H.G. hunt, O.Ir. cu, Welsh ci, Skt. svan-, Avestan spa, Rus. sobaka (apparently from an Iranian source), Armenian shun, Lith. suo). The adjective is attested from c.1600. The noun meaning "dog" is first recorded 1869.