αὐξάνω

and earlier (the only form in Pindar and Sophocles (Veitch, under the word says, 'Hesiod, Mimnermus, Sophocles, Thucydides always have αὔξω or ἀύξομαι, and Pindar except ἀυξανοι from 130 (Bergk)')) αὔξω (Eph 2:21; Col 2:19); imperfect ηὔξανον; future αὐξήσω; 1 aorist ἠύξησα; (passive, present ἀυξάνομαι); 1 aorist,
1. transitive, to cause to grow, to augment: 1 Cor 3:6; 2 Cor 9:10. Passive to grow, increase, become greater: Mt 13:32; Mk 4:8 L T Tr WH; 2 Cor 10:15; Col 1:6 (not Rec.); εἰς τήν ἐπίγνωσιν τοῦ Θεοῦ unto the knowledge of God, Col 1:10 (G L T Tr WH τῇ ἐπιγνώσει τοῦ Θεοῦ); εἰς σωτηρίαν (not Rec.) to the attaining of salvation, 1 Pet 2:2.
2. according to later usage (from Aristotle, an. post. 1, 13, p. 78{b}, 6, etc., down; but nowhere in the Sept. (cf. Buttmann, 54 (47); 145 (127); Winers Grammar, § 38, 1)) intransitive, to grow, increase: of plants, Mt 6:28; Mk 4:8 Rec.; Lk 12:27 (not Tdf.; Tr marginal reading brackets αὐξάνω); Lk 13:19; of infants, Lk 1:80; Lk 2:40; of a multitude of people, Acts 7:17. of inward Christian growth: εἰς Χριστόν, in reference to (Winer's Grammar, 397 (371); yet cf. Ellicott at the passage) Christ, Eph 4:15; εἰς ναόν, so as to form a temple, Eph 2:21; ἐν χάριτι, 2 Pet 3:18; with an accusative of the substance. τήν αὔξησιν, Col 2:19 (cf. Winers Grammar, § 32, 2; Buttmann, § 131, 5, also Lightfoot's note at the passage); of the external increase of the gospel it is said ὁ λόγος ηὔξανε: Acts 6:7; Acts 12:24; Acts 19:20; of the growing authority of a teacher and the number of his adherents (opposed to ἐλαττοῦσθαι), Jn 3:30. (Compare: συναυξάνω, ὑπεραυξάνω.)