Abbott-Smith Manual Greek Lexicon
εὐδία (G2105)
2 ** εὐδία , -ας, ἡ [in LXX: Si 3:15 * ;] ( εὔδιος , calm) fair weather : Mt 16:2 (Rec., R, txt.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G2105 · Greek
εὐδία
eudia · yoo-dee'-ah
feminine from 2095 and the alternate of 2203 (as the god of the weather); a clear sky, i.e. fine weather