Lewis & Short

fossīcĭus or -tĭus, a, um, adj. [fossus, from fodio], dug out, dug up from the ground: creta, Varr. R. R. 1, 7, 8: sal, id. ib.: harena, Plin. 36, 23, 54, § 175; Pall. 1, 10. Cf. the foll. art.