εὐσωματεῖν

From LSJ

περὶ οὐδὲν γὰρ οὕτως ὑπάρχει τῶν ἀνθρωπίνων ἔργων βεβαιότης ὡς περὶ τὰς ἐνεργείας τὰς κατ' ἀρετήν → since none of man's functions possess the quality of permanence so fully as the activities in conformity with virtue

Source

Greek > English (Woodhouse Verbs Reversed)

(see also εὐσωματέω): be strong in body, be strong, be vigorous