Lexical Definition

‎χαλάω‎ chaláō (khal-ah'-o) to lower G:V
from the base of ‎χάσμα‎

let down, strike.

Usage: 10 forms in 12 verses
Form Translated As     In Verse(s)
ἐχαλάσθην I was let down 2Cor.11.33
χαλῶσιν they let down Mark.2.4
χαλασάντων having let down Acts.27.30
χαλάται should not slacken LXX.Exod.28.28
slacken LXX.Exod.39.21
χαλάσω I will let down Luke.5.5
χαλάσει let down LXX.Isa.33.23
χαλάσατε do lower Luke.5.4
χαλάσαντεσ having lowered Acts.9.25Acts.27.17
εχαλάσατε have you slackened LXX.Isa.57.4
εχάλασαν they let him down LXX.Jer.38.6

Abbott-Smith

χαλάω, -ῶ [in LXX: (Je 45 (38):6*) (שׁלח pi.), etc. ;]
(a) to slacken, loosen;
(b) to let loose, let go;
(c) to lower, let down: c. acc. rei, Mk 2:4, Lk 5:4, 5, Ac 9:25 27:17, 30; c. acc. pers. (cf. Je, l.c.*), pass., II Co 11:33.†

Abbott-Smith References

Book Refs
Jeremiah 38:6*
Mark 2:4
Luke 5:4
Acts 9:25 · 27:17 · 27:30
2 Corinthians 11:33

Liddell-Scott-Jones

χαλάω,

[Refs 4th c.BC+], Epic dialect 3rd.pers. plural χαλόωσιν [Refs 2nd c.AD+]; Aeolic dialect 3rd.pers. plural χόλαισι [Refs 7th c.BC+]future χᾰλάσω [λᾰ] [Refs 5th c.BC+]: aorist ἐχάλᾰσα [Refs 5th c.BC+]; Epic dialect χάλασσα [Refs], plural subjunctive χαλάσσομεν [Refs 7th c.BC+]; Doric dialect participle χᾰλάξαις [Refs 5th c.BC+]; 3rd.pers. singular future or aorist subjunctive χαλάξει (uncertain meaning) [Refs]:—middle, Epic dialect aorist χαλάσαντο [Refs 3rd c.BC+] —passive, aorist ἐχαλάσθην, subjunctive χᾰλασθῇ [Refs 5th c.BC+]: perfect κεχάλασμαι [Refs 2nd c.AD+]: pluperfect ἐκεχάλαστο [Refs 2nd c.AD+]

__I transitive, slacken, loosen, χ. βιόν, τόξα, unstring the bow, [Refs]; χ. τὰ νεῦρα, opposed to συντείνειν, [Refs 5th c.BC+] —passive, opposed to ἐπιτείνεσθαι, [Refs 5th c.BC+]
__I.2 let down, let fall, πτέρυγα χαλάξαις Pi.[same place]; χαλάσας ὀλίγον τὸ μέτωπον having unbent the brow, [Refs 5th c.BC+]; μαστοὺς χάλασον, says the Cyclops to his ewe, [Refs 5th c.BC+]; κράββατον, δίκτυα χ., [NT]; dip in a liquid, εἰς αἷμα [Refs]; soak, [Refs] —middle, ἱστὸν χαλάσαντο lowered it, [Refs 3rd c.BC+]
__I.3 let loose, release, τινὰ ἐκ δεσμῶν [Refs 4th c.BC+]; absolutely, let go, slacken one's hold, μηδαμῇ χάλα [Refs]
__I.4 ἡνίας χ. slacken the reins, especially in metaphorically sense, χ. τὰς ἡνίας τοῖς λόγοις [Refs 5th c.BC+]
__I.5 κλῇθρα χ. loose the bars or bolts, i.e. undo or open the door, [Refs 5th c.BC+]
__I.6 loosen or undo things drawn tightly together, χ. κρεμαστὴν ἀρτάνην [Refs 5th c.BC+]:—passive, τὰ χαλώμενα ὅπλα [Refs 5th c.BC+]
__I.7 of the bowels, etc., ὑγρὰ χ. [Refs 5th c.BC+]
__I.8 metaphorically, τὴν ὀργήν χ. let it go, [Refs 5th c.BC+]; remit, μήτε τῆς προνοίας χαλώσης τὴν.. ὑπεροχήν [Refs 5th c.AD+]; τὸ ἀεὶ ταῦτα οὕτως ἔχειν ἐχάλασαν relaxed the strict principle that.. [Refs 5th c.BC+]:—passive, to be softened, λίθος εἰς ὑγρότητα κεχαλασμένος [Refs 4th c.AD+]; also κεχαλάσθαι εἰς τὸ αὐτεξούσιον to have free play, opposed to συντετάχθαι, [Refs 3rd c.AD+]
__II intransitive, become slack or loose, opposed to συντείνω, [Refs 7th c.BC+]; πύλαι χαλῷσαι open gates, [Refs 5th c.BC+]: metaphorically with genitive, have a remission of, χαλάσσομεν τὰς θυμοβόρω λύας [Refs 7th c.BC+]; relax, φρονήματος χ. [Refs 5th c.BC+]
__II.2 with dative person, χ. τινι give way or yield to any one, be indulgent to him, εἰ τοῖσιν.. κτείνουσιν ἀλλήλους χαλᾷς [Refs 5th c.BC+]: absolutely, give way, εἴκειν ὁδοῦ χαλῶντα τοῖς κακίοσιν [Refs 5th c.BC+]
__II.3 absolutely, grow slack or weak, ἐπειδὰν αἱ ἐπιθυμίαι παύσωνται κατατείνουσαι καὶ χαλάσωσι [Refs]; abate, χαλάσει παγετός [Refs 5th c.BC+]

LSJ Scripture Refs: Mark.2.4Luke.5.5