καθαρτήρ
From LSJ
οἴνῳ τὸν οἶνον ἐξελαύνειν → chase out the wine with wine, take a hair of the dog that bit you, try to drive out the wine with wine
English (LSJ)
ῆρος, ὁ,= καθαρτής, Man. 4.251; a name given to ὄροβος at Tralles, Plu.2.302b.
German (Pape)
[Seite 1282] ῆρος, ὁ, = καθαρτής; Han. 4, 251; Plut. qu. gr. 46.