incudo

in-cūdo, di, sum, ĕre, v. a.,

to forge with the hammer , to fabricate (poet., used only in part. pass. ): incusa auro dona, Pers. 2, 52: lapis, an indented or sharpened stone for a handmill , Verg. G. 1, 275; Col. 7, 1, 3.