Quick Definition
a rushing on, impulse
Strong's Definition
an attack, i.e. (abstractly) precipitancy
Derivation: from G3730 (ὁρμή);
KJV Usage: violence
Thayer's Greek Lexicon
ὅρμημα, ὁρμηματος, τό (ὁρμάω), a rush, impulse: Rev_18:21 (here A. V. violence). (For ςΖαΐψΘδ outburst of wrath, Amo_1:11; Hab_3:8, cf. Schleusner, Thesaurus iv., p. 123; an enterprise, venture, Homer, Iliad 2, 356, 590, although interpreters differ about its meaning there (cf. Ebeling, Lex. Homer or Liddell and Scott, v.); that to which one is impelled or hurried away by impulse (rather, incitement, stimulus), Plutarch, mor. (de virt. mor. § 12), p. 452c.)
Mounce Concise Greek Dictionary
ὅρμημα hormēma 1x
violent or impetuous motion; violence, Rev_18:21
Abbott-Smith Greek Lexicon
ὅρμημα , -τος , τό
(ὁρμάω ),
[in LXX : Hos_5:10 , Amo_1:11 ( H5678 ), etc.;]
a rush: Rev_18:21 .†
Moulton & Milligan — Vocabulary of the Greek NT
ὅρμημα [page 458]
The meaning of this NT ἅπ . εἰρ . in Rev_18:21 is doubtful. It is often rendered a rush, a mighty onset, as in Deu_28:49 , but Charles ( ICC ad l. = II. p. 107 f.) suggests that the meaning is rather indignation, as in Hos_5:10 al. See s.v. ὁρμή ad fin.
Liddell-Scott — Intermediate Greek Lexicon
ὅρμημα ὅρμημα, ατος, τό, [Etym: = ὁρμή] "stir, impulse", Ἑλένης ὁρμήματά τε στοναχάς τε "longings" and sighs [of the Greeks] "for" Helen, or, their "struggles" and sighs "for" her recovery (Ἑλένης being an objective gen.), Il.
STEPBible — Tyndale Abridged Greek Lexicon
ὅρμημα, -τος, τό
(ὁρμάω) [in LXX: Hos.5:10, Amo.1:11 (עֶבְרָה), etc. ;]
a rush: Rev.18:21.†
(AS)