trītor (noun M) : tero
* A rubber, grinder, chafer: colorum,a grinder of colors,Plin. 35, 11, 40, § 145: compedium, a chain-rubber, a term of reproach applied to a chained slave, Plaut. Pers. 3, 3, 15: stimulorum, of one who is often scourged,id. ib. 5, 2, 17: ARGENTARIVS, i. e. caelator, Inscr. Rein. cl. 11, n. 97.