τρῶξις
From LSJ
ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers
English (LSJ)
εως, ἡ,
A gnawing, biting, ὀνύχων τρώξεις Arist.EN1148b28; λίθων, γῆς, Hp.Prorrh.2.31.
Greek (Liddell-Scott)
τρῶξις: -εως, ἡ, τὸ τρώγειν, ἀποδάκνειν, ἀποκόπτειν διὰ τῶν ὀδόντων, ὀνύχων τρώξεις Ἀριστ. Ἠθικ. Νικ. 7. 5, 3.