ἀκόλυμβος
From LSJ
μή μοι θεοὺς καλοῦσα βουλεύου κακῶς· πειθαρχία γάρ ἐστι τῆς εὐπραξίας μήτηρ, γυνὴ Σωτῆρος· ὦδ᾽ ἔχει λόγος → When you invoke the gods, do not be ill-advised. For Obedience is the mother of Success, wife of Salvation—as the saying goes.
English (LSJ)
ον,
A unable to swim, Batr.158, Str.6.2.9, Plu.2.599b.
Greek (Liddell-Scott)
ἀκόλυμβος: -ον, ὁ μὴ δυνάμενος νὰ κολυμβᾷ, Βατραχομ. 157, Στράβ., Πλούτ.