ἀπολούτριος
From LSJ
Εἰ μὲν ἐπ' ἀμφοτέροισιν, Ἔρως, ἴσα τόξα τιταίνεις, εἶ θεός (Rufinus, Greek Anthology 5.97) → If, Eros, you're stretching your bow at both equally, then you're a god.
English (LSJ)
ον,
A washed off: τὰ ἀπολούτρια (sc. ὕδατα) water which has been used for washing, Ael.NA17.11:—also ἀπό-λουτρον, τό, Sch.Ar.Eq. 1401.