ὑπερινάω
From LSJ
ξένῳ δὲ σιγᾶν κρεῖττον ἢ κεκραγέναι → it's better for a stranger to keep silence than to shout (Menander)
English (LSJ)
purge violently, Hp. as cited by Erot. (cf. ὑπέρινος), Poll.4.179 (Pass.).
Greek (Liddell-Scott)
ὑπερῐνάω: κενόω ἰσχυρῶς διὰ καθάρσεως, Ἱππ., ὡς μνημονεύεται παρὰ τῷ Ἐρωτιαν. (πρβλ. ὑπέρινος), Πολυδ. Δ΄, 179.