Lewis & Short

hircīnus (hirquīnus), a, um, adj. [hircus], of a goat, goat’s: barba, Plaut. Ps. 4, 2, 12: sanguis, Plin. 20 prooem. § 2; 37, 4, 15, § 59: pelles, id. 12, 17, 40, § 81: folles, Hor. S. 1, 4, 19: sidus, i. e. the constellation Capricorn, Prud. Apoth. 621.
Comically: alae, that have a goatish smell, Plaut. Poen. 4, 2, 51.

hirquīnus, a, um, v. hircinus.