wash out, purge away; wash off from oneself
Ancient Greek word, found 40 times in the texts on Socratos.
Theocritus, Εἰδύλλια 4.59: τήναν τὰν κυάνοφρυν ἐρωτίδα, τᾶς ποκʼ ἐκνίσθη;
Euripides, Alcestis 822: τί φῄς; ἔπειτα δῆτά μ’ ἐξενίζετε;
Euripides, Iphigenia in Tauris 1224: μυσαρὸν ἐκνίψω, σέλας τε λαμπάδων τά τʼ ἄλλʼ ὅσα
All forms of ἐκνίζω