Lewis & Short

căprīle, is, n. [caper, like equile, ovile, bubile, etc.], an enclosure or stall for goats, Varr. R. R. 2, 3, 8; Col. 7, 6, 6; Plin. 28, 10, 42, § 153; Vitr. 6, 9.
Adj.: căprīlis, e, of or pertaining to the goat: semen, i. e. capellae, Varr. R. R. 2, 3, 3.