καθάρτρια
From LSJ
οὐ παντός πλεῖν ἐς Κόρινθον → it's not for every man to make a journey to Corinth, not everyone can afford a trip to Corinth
English (LSJ)
ἡ, fem. of καθαρτής, Sch.Pi.P.3.139.
German (Pape)
[Seite 1282] ἡ, fem. zu καθαρτής, Schol. Pind. P. 3, 139.
Greek (Liddell-Scott)
καθάρτρια: ἡ, θηλ. τοῦ καθαρτής, Σχόλ. εἰς Πινδ. Π. 3. 139.