proavitus

prŏăvītus, a, um, adj. [proavus], of or belonging to a great-grandfather, or to one's ancestors, ancestral ( poet. ):

regna,

inherited from his forefathers, Ov. M. 13, 416:

rura,

Stat. S. 4, 4, 83 ' potentia, Sil. 16, 254:

medicamina didicit,

id. 5, 366:

facta,

id. 11, 88.