Cantherius, vel (vt alij scribunt) Canterius. Col. A raile of a vine borne vp with postes and forkes: a frame: also a rafter or transome: a gelding of an horse onely.
Lewis and Short: Latin dictionary
canthērĭus or cantērĭus, ii, m. [perh. kanqh/lios, a beast of burden]. I.A gelding, Varr. R. R. 2, 7, 15; cf. Paul. ex Fest. p. 46 Müll.; Plaut. Aul. 3, 5, 21; id. Capt. 4, 2, 34; Cic. N. D. 3, 5, 11; id. Fam. 9, 18, 4; Sen. Ep. 87, 9.—B.An ass, mule, Tert. Apol. 16; id. ad Nat. 1, 14.—Prov.: minime, sis, cantherium in fossam, put the hack in the ditch, when it is useless, Liv. 23, 47, 6 Weissenb. ad loc.—II.Meton.A.A man impotent through age, Plaut. Cist. 4, 2, 83.—B. In architecture, a spar under the roof, a rafter, Fr. chevron, Vitr. 4, 2.— C. In the lang. of vine-dressing, a pole furnished with cross-pieces for supporting the vine, a trellis, Col. 4, 12, 1; 4, 4, 14; 11, 3, 62.—D. Among veterinary surgeons, a kind of frame for suspending sick horses, Veg. 3, 47, 3.