Quick Definition
good weather
Strong's Definition
a clear sky, i.e. fine weather
Derivation: feminine from G2095 (εὖ) and the alternate of G2203 (Ζεύς) (as the god of the weather);
KJV Usage: fair weather
Thayer's Greek Lexicon
εὐδία, ἐυδιας, ἡ (from εὔδιος, ἐυδιον, and this from εὖ and Ζεύς, genitive Διός, Zeus, the ruler of the air and sky), a serene sky, fair weather: Mat_16:2 (T brackets WH reject the passage). (Sir_3:15; Pindar, Aeschylus, Hippocrates, Xenophon, and following.)
Mounce Concise Greek Dictionary
εὐδία eudia 1x
serenity of the heavens, a cloudless sky, fair or fine weather, Mat_16:2
Abbott-Smith Greek Lexicon
** εὐδία , -ας , ἡ ,
( < εὔδιος , calm )
[in LXX : Sir_3:15 * ;],
fair weather: Mat_16:2 ( Rec. , R , txt .).†
Moulton & Milligan — Vocabulary of the Greek NT
εὐδία [page 260]
This originally poetical word (Thumb Dial. p. 373), which is rejected in the best texts of Mat_16:2 , occurs on the Rosetta stone OGIS 90 .11 (B.C. 196) καὶ δαπάνας πολλὰς ὑπομεμένηκεν ἕνεκα τοῦ τὴν Αἴγυπτον εἰς εὐδίαν ἀγαγεῖν , where Dittenberger notes that it is used metaphorically de beato et tranquillo rerum publicamm statu : cf. Herodas i. 28, where amongst the glories of Egypt are mentioned δύναμις , εὐδ [ίη , δ ]όξα , power, peace, fame. For the literal sense cf. P Oxy IX. 1223 .12 (late iv/A.D.) ἠ ( l. εἰ ) καὶ εὐδία ἐστὶ καὶ τὸ πλοῖον ἀνενέγκε οὐ δύναται ἐν τῇ σήμερον , if it is calm weather and he cannot bring back the boat to-day (Ed.).
Liddell-Scott — Intermediate Greek Lexicon
εὐδία εὐδία, ἡ, [Etym: εὔδιος] "fair weather", Xen. metaph. "tranquillity, calm", Aesch. , Xen.
STEPBible — Tyndale Abridged Greek Lexicon
εὐδία, -ας, ἡ
(εὔδιος, calm) [in LXX: Sir.3:15 * ;]
fair weather: Mat.16:2 (Rec., R, txt.).†
(AS)