Lewis Short
(adjective) : āprūgnus (also āprūnus), a, um, aper
* Of or belonging to the wild boar: aprugnum callum,Plaut. Pers. 2, 5, 4 Ritschl; cf. id. Poen. 3, 2, 2: aprunus adeps,Plin. 28, 11, 47, § 167 Jan: lumbus,id. 8, 51, 78, § 210. —Hence, āprūgna (āprūna), ae, f. (sc. caro), the flesh of a wild boar, Capitol. Max. Jun. 2.—A secondary form, āprūgĭnĕus, a, um, Sol. 32.
Charlton T. Lewis, Charles Short, A Latin Dictionary