εὐκόλυμβος
From LSJ
Χρὴ τῶν ἀγαθῶν διακναιομένων πενθεῖν ὅστις χρηστὸς ἀπ' ἀρχῆς νενόμισται → When a good man is hurt, all who would be called good must suffer with him
English (LSJ)
ον,
A diving well, Heph.Astr.2.2, Sch.Lyc.387.
German (Pape)
[Seite 1075] gut schwimmend, Schol. Lyc. 387.