ἀπολούτριος
From LSJ
Καὶ τῶν λεγόντων εὖ καλὸν τὸ μανθάνειν → It is a fine thing to learn from those who speak well
English (LSJ)
ον, washed off: τὰ ἀπολούτρια (sc. ὕδατα) water which has been used for washing, Ael.NA17.11:—also ἀπό-λουτρον, τό, Sch.Ar.Eq. 1401.