Quick Definition
πλημμύρα, ας, ἡ n.f. a flood
Strong's Definition
prolonged from 4130; flood-tide, i.e. (by analogy) a freshet
KJV Usage: flood
UBS Dictionary of the Greek New Testament
noun, f. | -ης | πίμπλημι + μύρω
14.33 · Physical Events and States · Events Involving Liquids and Dry Masses
flood, high water the overflowing of the banks by a river or stream One might very well render LUK 6:48 as ‘when the river overflowed its banks, it burst against the house.’ In some instances it may not be possible to use a term which would be more or less literally ‘to burst against,’ but one can say ‘tried to cause the house to collapse’ or ‘tried to destroy the house.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
πλημμύρα [so all edd.] (or πλημύρα [cf. Bitm. Ausf. Spr. § 7 Anm. 17 note; Lob. Rhemat. p. 264]) [better accented as proparoxytone; Chandler 8100], -as and (so GT Tr WH) -ns (see μάχαιρα), ἡ, (fr. πλήμμη or πλήμη i.e. πλήσμη [fr. πλήθω. πίμπλημι, q. V.]), α flood, whether of the sea or of a river: Lk. vi.48. (Job xl. 18; [Dion. Hal. antt.1, 71]; Joseph. antt. 2, 10,2; Plut., Sext. Emp. ; with ποταμῶν added, Philo de opif. mund. § 19; [cef. de vita Moys. i. § 36 ; iii. § 24; de Abrah. § 19; de leg. alleg. i. §13].)
Mounce Concise Greek Dictionary
πλήμμυρα plēmmyra 1x
the flood-tide; a flood, Lk. 6:48*
Abbott-Smith Greek Lexicon
† πλήμμυρα, -ης (for Att. -ας, v. Bl., § 7, 1)
(< πλήθω), [in LXX: π. γένεσθαι, Jb 40:18 (23) (נָהָר עָשַׁק)*;]
a flood (of sea or river): Lk 6:48.†
Moulton & Milligan — Vocabulary of the Greek NT
πλημμύρα, «ἐᾷ flooding,’’ “ flood.’” On the form πλημύρα in Lk 648 DW αἰ, as the older spelling, see Moulton Gy, il. p. 101. The verb is found with a single p in OGZS 6668 (a.p. 54-68), where Egypt is described as πλημύρουσα πᾶσιν ἀγαθοῖς owing to the good deeds of the praefect Tiberius Claudius Balbillus, and in P Lond 924! (a.p. 187-188) (= III. p- 134) πλημυρέντος τοῦ Νείλου. For double μι see Vett. Val. p. 344% and Artem. pp. 1237 (of a well) πλημμυροῦντος τοῦ ὕδατος and 124° (of springs) ὕδατι καθαρῳ πλημμυροῦσαι. πλήν 5
Liddell-Scott-Jones — Greek-English Lexicon
πλήμμυρα (plēmmura) — flood. πλήμῡρ-α, ἡ, ={πλημυρίς}, flood-tide, flood, [NT+4th c.BC+]; inundation of the Nile, [Refs 3rd c.AD+]: metaphorically, λόγου [Refs 1st c.AD+]
2. in Medicine texts, accumulation, excessive flow, Lycusap.[Refs 2nd c.AD+]