Usage: 5 forms in 5 verses
Form Translated As     In Verse(s)
σφαλούσιν they shall trip LXX.2Sam.22.46
σφαλή should trip LXX.Deut.32.35
σφάλαι trip LXX.Job.18.7
έσφαλεν tripped LXX.Amos.5.2
έσφαλε to trip LXX.Job.21.10

Liddell-Scott-Jones

σφάλλω (sphallō) to trip G:V

σφάλλω,

[Refs 5th c.BC+]: future σφᾰλῶ [Refs 5th c.BC+]aorist 1 ἔσφηλα, Epic dialect σφῆλα [Refs 8th c.BC+], Doric dialect ἔσφᾱλα [Refs 5th c.BC+]: but the intransitive ἔσφαλεν [LXX]aorist 1 Εσφᾰλα (presupposing Εσφᾰλον as ἦλθα presupposes ἦλθον, etc.): perfect ἔσφαλκα [Refs 2nd c.BC+]:— passive, future σφᾰλήσομαι [Refs 5th c.BC+]; frequently in middle form σφᾰλοῦμαι, [Refs 5th c.BC+]aorist ἐσφάλην [] [Refs 7th c.BC+]; ἐσφάλθην only in [Refs 2nd c.AD+]: perfect ἔσφαλμαι [Refs 5th c.BC+]: pluperfect ἔσφαλτο [Refs 5th c.BC+]:— make to fall, overthrow, properly by tripping up, trip up in wrestling, οὔτ᾽ Ὀδυσεὺς δύνατο σφῆλαι οὔδει τε πελάσσαι [Refs 8th c.BC+]; [πώλους] [Refs 5th c.BC+]; τὸ μὴ ὑπερπίνειν ἧττον ἂν καὶ σώματα καὶ γνώμας σ. [Refs 5th c.BC+]; σ. ναῦς throw them on their beam-ends, [Refs 1st c.AD+]; [ἵπποι] ἔσφηλαν (gnomic aorist) τὸν ἀναβάτην throw him, [Refs 5th c.BC+]:—passive, to be tripped up, Φρυνίχου παλαίσμασιν [Refs 5th c.BC+]; of a drunken man, σφαλλόμενος προσέρχεται reeling, staggering, [Refs 5th c.BC+]; σ. [ἱππεύς] is thrown, [Refs 5th c.BC+]

__II generally, cause to fall, overthrow, βία καὶ μεγάλαυχον ἔσφαλεν [σφάλλω.. ὅσοι φρονοῦσιν εἰς ἡμᾶς μέγα 5th c.BC: Euripides Tragicus “Hippolytus” 6; [ὀργὴ] πλεῖστα.. σ. βροτούς [prev. author] “fragment” 31 ">Refs 5th c.BC+]; καταφρόνησις, ἀπειρία σ. τινά, [Refs 5th c.BC+]: also of things, ἁμαρτίαι σ. τὴν σωτηρίαν [Refs 5th c.BC+]; σφάλλων, name of a throw of the dice, [Refs 4th c.BC+]:—passive, to be overthrown, fall, especially of persons falling from high fortunes, σφαλεὶς γὰρ οὐδεὶς εὖ βεβουλεῦσθαι δοκεῖ [Refs 5th c.BC+]; ἢν σφαλῇ [ Ἑλλάς] [Refs 5th c.BC+]; ἢν ἄρα τι σφαλλώμεθα, opposed to κατορθοῦν, [Refs 5th c.BC+]; ὑπὸ νόσων, ἐρώτων, μέθης ἐσφαλμένος, [Refs 5th c.BC+]; ὑπὸ χρόνων τι σ. suffer from length of time, [Refs 5th c.BC+]: with a preposition, ἐν τῇ μάχῃ [Refs 5th c.BC+]: with neuter adjective, σφάλλεσθαι ἓν μέγα [Refs 5th c.BC+]; ἐν τοῖς δικασταῖς, κοὐκ ἐμοί, τόδ᾽ ἐσφάλη this mishap took place by means of.., [Refs 5th c.BC+]; οὔ τι μὴ σφαλῶ γ᾽ ἐν σοί I shall not fail in thy business, [Refs]
__III baffle, balk, frustrate, of an oracle, [Refs 5th c.BC+]; ἐκ τοῦ φανεροῦ τὴν πόλιν σ. [Refs 4th c.BC+]:— passive, err, go wrong, be mistaken, κατὰ γνώμην [Refs 5th c.BC+]; μῶν ἐσφάλμεθ; am I mistaken? [Refs 5th c.BC+]; διανοίᾳ σ. [Refs 5th c.BC+]; so σ. τὴν γνώμην, τὸν λογισμόν, [Refs 4th c.BC+]infinitive, οὐκ ἂν σφαλείη.. ἑλέσθαι be led astray into choosing, [Refs]
__III.2 passive also, with genitive of things, to be balked of or foiled in a thing, καὶ πατήρ τι σφάλλεται βουλευμάτω; [Refs 4th c.BC+]; γάμων, δόξης, τύχης, [Refs 5th c.BC+]; ἀνδρός lose him, [Refs 5th c.BC+] —σφάλλειν τινὰ ἀπ᾽ ἐλπίδος cast him down from his hope, [Refs 2nd c.AD+]

LSJ Scripture Refs: LXX.Job.21.10LXX.Amos.5.2LXX.Job.18.7