καθαρτήρ

ῆρος, ὁ
καθαρ‐τήρ, ῆρος, ὁ,= καθαρτής, Man. 4.251; a name given to ὄροβος at Tralles, Plu. 2.302b.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project