dē-terō trīvī, trītus, ere, to rub away, wear away: detritae aequore conchae, O.: pedes (via), Tb.: a catenā collum detritum, Ph.

—Fig., to lessen, weaken, impair: laudes Caesaris culpā ingeni, H.: Exiguis (rebus) aliquid, Iu.

—To file away, prune: sibi multa, H.