σχαλίσαι

Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη → The first and best victory is to conquer self.

Plato, Laws, 626e

Frisk Etymological English

Grammatical information: v.
Meaning: θηλάσαι, καὶ ἀνίσχαλον τὸ ἄτοκον καὶ ἀθήλαστον H.
Origin: XX [etym. unknown]
Etymology: Unknown.