Lexicon :: Strong's G1805 - exagorazō

ἐξαγοράζω: 1 aorist ἐξηγόρασα; [present middle ἐξαγοράζομαι];
1. to redeem i. e. by payment of a price to recover from the power of another, to ransom, buy off [cf. ἐκ, VI. 2]: properly, θεραπαινίδα, Diodorus 36, 1, p. 530; metaphorically, of Christ freeing men from the dominion of the Mosaic law at the price of his vicarious death (see ἀγοράζω, 2 b.), τινά, Galatians 4:5; with addition of ἐκ τῆς κατάρας τοῦ νόμου, Galatians 3:13.
2. to buy up, Polybius 3, 42, 2; Plutarch, Crass. 2; middle τί, to buy up for oneself, for one's use [Winers Grammar § 38, 2 b.; Buttmann, 192 (166f)]: tropically, in the obscure phrase, ἐξαγ. τὸν καιρόν, Ephesians 5:16 and Colossians 4:5, where the meaning seems to be to make a wise and sacred use of every opportunity for doing good, so that zeal and well-doing are as it were the purchase-money by which we make the time our own; (active ἐξαγοράζειν καιρόν, to seek [to gain time (A. V.) i. e.] delay, Daniel 2:8; middle with the accusative of thing, 'by ransom to avert evil from oneself', 'to buy oneself off or deliver oneself from evil': διὰ μιᾶς ὥρας τὴν αἰώνιον κόλασιν ἐξαγοραζόμενοι, of the martyrs, Martyr. Polycarp, 2, 3).

BLB Scripture Index of Thayer's