G0839
αὔριον
tomorrow
αὔριον adv., [in LXX for מָחָר ;] to-morrow: Mat.6:30, Luk.12:28, Act.23:20 25:22, 1Co.15:32, Luk.13:32-33, Jas.4:13; ἡ αὔ. (sc. ἡμέρα, MM, see word), Mat.6:34, Act.4:3; ἐπὶ τὴν αὔ., Luk.10:35, Act.4:5; τὸ (WH om.) τῆς Jas.4:14.† (AS)
Full Thayer's lexicon entry
αὔριον — aúrion
αὔριον, adverb (from ἀυρο the morning air, and this from αὔω to breathe, blow; (according to others akin to ἠώς, Latinaurora; Curtius, § 613, cf. Vanicek, p. 944)), tomorrow (Latincras): Mat 6:30; Luk 12:28; Act 23:15 Rec.,;; 1Co 15:32 (from Isa 22:13); σήμερον καί αὔριον, Luk 13:32; Jas 4:13 (Rec.st G, others σήμερον ἤ αὔριον). ἡ αὔριον namely, ἡμέρα (Winers Grammar, § 64, 5; Buttmann, § 123, 8) the morrow, Mat 6:34; Act 4:3; ἐπί τήν αὔριον, on the morrow, i. e. the next morning, Luk 10:35; Act 4:5; τό (L τά; WH omits) τῆς αὔριον, what the morrow will bring forth, Jas 4:14. (From Homer down.)
14 occurrences
Matthew (2), Luke (4), Acts (5), I Corinthians (1), James (2)