STEP Greek Lexicon: τρίμηνος

τρίμηνος, -ον

(τρεῖς, μήν) [in LXX (neut.): Gen.38:24, 4Ki.23:31 B 4Ki.24:8, 2Ch.36:2 36:9 (חֹדֶשׁ שָׁלוֹשׁ) * ;]

of three months; as subst., τὸ τ. (= cl. ἡ τ.), a space of three months (Polyb., al.; LXX): Heb.11:23.†

(AS)