G0465
ἀντάλλαγμα
in exchange
ἀντ-άλλαγμα, -τος, τό (ἀντί, ἄλλαγμα; ἀλλάσσω) [in LXX chiefly for מְחִיר ;] an exchange, the price received as an equivalent for an article of commerce: Mat.16:26, Mrk.8:37 (cf. Sir.26:14; and see Swete, Mk., l.with; Cremer, 90).† (AS)
Full Thayer's lexicon entry
ἀντάλλαγμα — antállagma
ἀντάλλαγμα, ἀνταλλαγτος, τό (ἀντί in place of, in turn, and ἄλλαγμα see ἀλλάσσω), "that which is given in place of another thing by way of exchange; what is given either in order to keep or to acquire anything": Mat 16:26; Mar 8:37, where the sense is, 'nothing equals in value the soul's salvation.' Christ transfers a proverbial expression respecting the supreme value of the natural life (Homer, Iliad 9, 401 οὐ γάρ ἐμοί ψυχῆς ἀνταξιον) to the life eternal. (Rth 4:7; Jer 15:13; Sir 6:15, etc.; Euripides, Or. 1157; Josephus, b. j. 1, 18, 3.)
2 occurrences
Matthew (1), Mark (1)