Quick Definition
λάσκω v. I burst asunder with a loud noise
Strong's Definition
a strengthened form of a primary verb, which only occurs in this and another prolonged form as alternate in certain tenses; to crack open (from a fall)
KJV Usage: burst asunder
UBS Dictionary of the Greek New Testament
verb
19.30 · Physical Impact · Split, Tear
to burst open to burst open, probably from internal pressure
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
λάσκω: 1 aor. ἐλάκησα; (cf. Bitm. Ausf. Sprehl. ii. p. 233; Kriiger ii. 1, p. 134; Kiihner § 848, i. p. 858; [Veitch s. v.]; W. 88 (84)); 1. to crack, crackle, crash: Hom., Hes., Tragg., Arstph. 2. to burst asunder with a crack, crack open: Acts i. 18; ὃ δράκων φυσηθεὶς (after having sucked up the poison) ἐλάκησε καὶ ἀπέθανε καὶ ἐξεχύθη ὁ ids αὐτοῦ καὶ ἡ χολή, Act. Thomae § 33, p. 219 ed. Tdf.
Mounce Concise Greek Dictionary
λακάω lakaō 1x
burst open, Acts 1:18*
Abbott-Smith Greek Lexicon
* λάσκω, (in cl., poët.) to clang, crash, crack; in late prose, to crack or burst noisily: Ac 1:18 (ἐλάκησεν, perh., however, from λακέω, q.v.; Bl., in l.).
(in cl., prose) to scream, shout.†
Moulton & Milligan — Vocabulary of the Greek NT
λάσκω. See s.v. λακέω. As showing the weakening sense of | λάσκω, it may be noted that Thumb (Hazdbook, p. 337) | cites AdoKopat from Pontus with the meaning ‘‘seek aimlessly.
Liddell-Scott-Jones — Greek-English Lexicon
λάσχω (laschō) — to burst. λάσκω, imperfect ἔλασκον [Refs 5th c.BC+]: future λᾰκήσομαι [Refs 5th c.BC+]aorist 1 ἐλάκησα [ᾰ[Refs]aorist 2 ἔλᾰκον, Epic dialect λάκον [Refs 8th c.BC+]: aorist 1 ἔληξα [Refs 3rd c.BC+]: perfect λέληκα [Refs 8th c.BC+]; participle feminine λελᾰκυῖα [Refs 8th c.BC+] —middle, see below [Refs]:—ring, rattle, crash:
I. of things, ring when struck, λάκε χαλκὸς νυσσομένων ξίφεσίν τε καὶ ἔγχεσι [Refs 8th c.BC+]; also λάκε δ᾽ ὀστέα the bones cracked, broke with a crash, [Refs]; λάκε δ᾽ ἀμφὶ πυρὶ ὕλη crackled, [Refs 8th c.BC+]; ἔλακον ἀξόνων βριθομένων χνόαι creaked under the weight, [Refs 4th c.BC+] —this sense occurs only in aorist 2 active
II. of animals, scream, of the falcon, ὀξὺ λεληκώς [Refs 8th c.BC+]; of the nightingale in the falcon's talons, τί λέληκα; [Refs 8th c.BC+]; also, of dogs, howl, bay, Σκύλλη.. δεινὸν λελακυῖα Od.[same place]; rare in Prose, οὐ μινυρίζει οὐδὲ λέληκεν, of the black eagle, Arist.[same place]:—this sense occurs only in perfect, except in Epic dialect aorist middle, κύνες λελάκοντο [Refs]
III. of human beings, shout, scream, cry aloud, λέληκεν ἢν καὶ μηδέν᾽ ἀνθρώπων ὁρᾷ [Refs 7th c.BC+]; τί λέλακα; [Refs 5th c.BC+]: hence of Oracles, utter, [Refs 5th c.BC+]; also, sing, πρὸς αὐλόν [Refs 5th c.BC+]
III.2. with accusative cognate, shriek forth, utter aloud, ὀλολυγμόν [Refs 4th c.BC+]; στονόεν λέλακε χώρα [Refs 5th c.BC+]