γυμνάζω

γυμνάζω — gymnázō

γυμνάζω; (perfect passive participle γεγυμνασμενοσ'; (γυμνός); common in Greek writings from Aeschylus down;

1. properly, to exercise naked (in the palaestra).

2. to exercise vigorously, in any way, either the body or the mind: ἑαυτόν πρός εὐσέβειαν, of one who strives earnestly to become godly, 1Ti 4:7; γεγυμνασμενος exercised, Heb 5:14; Heb 12:11; καρδίαν γεγυμνασμένην πλεονεξίας (Rec. πλεονεξίαις), a soul that covetousness or the love of gain has trained in its crafty ways, 2Pe 2:14; cf. Winer's Grammar, § 30, 4.