G0407
ἀνδρίζω
to act like a man
ἀνδρίζω [in LXX for חָזַק אָמַץ (Jos.1:6 ff., 1Ch.22:19, al.; in 2Ki.10:12, Psa.27:14 31:24 combined with κρατιοῦσθαι, as in 1Co, l.with) ;] to make a man of. Mid., to play the man (cf. MM, VGT, see word): 1Co.16:13.† (AS)
Full Thayer's lexicon entry
ἀνδρίζομαι — andrízomai
ἀνδρίζω: (ἀνήρ); to make a man of or make brave (Xenophon, oec. 5, 4). Middle present ἀνδρίζομαι; to show oneself a man, be brave: 1Co 16:13 (A. V. quit you like men). (Often in the Sept.; Sir 34:25; 1Ma 2:64; Xenophon, Plato, Appian, Plutarch, others.)
1 occurrence