A.rub a little or gently, Hp.Genit.1.
2. rub down for mixing in a dish, σήσαμ᾽ ὑ. εἰς ταύτην (sc. ἅλμην) Damox.2.38, cf. Cratin.27; v. ὑπότριμμα.
II. rub off beneath or gradually:— Pass., ὑποτρίβεσθαι τὰς ὁπλάς, of horses, wear their hoofs off, D.S. 17.94: so intr. in Act., “ὑποτρίβουσι τοῖς ποσί” Hippiatr.53: cf. foreg.
III. in Pass., to be aggravated or become chronic, of diseases, Aët.9.35.