Lexical Definition

‎ἀπιστέω‎ apistéō (ap-is-teh'-o) to disbelieve G:V
from ‎ἄπιστος‎

believe not.

Usage: 7 forms in 8 verses
Form Translated As     In Verse(s)
ἠπίστουν they were not believing Luke.24.11
were disbelieving Acts.28.24
ἠπίστησαν disbelieved Mark.16.11
ἠπίστησάν disbelieved Rom.3.3
ἀπιστοῦσιν disbelieving 1Pet.2.7
ἀπιστοῦμεν we are faithless 2Tim.2.13
ἀπιστούντων while are disbelieving Luke.24.41
ἀπιστήσασ having disbelieved Mark.16.16

Abbott-Smith

** ἀπιστέω, -ῶ (< ἄπιστος), [in LXX: Wi 1:2 10:7 12:17 18:13, Si 1:27, II Mac 8:13*;]
1. to disbelieve, be faithless: Mk 16:11, 16, Lk 24:11, 41, Ac 28:24, I Pe 2:7; so prob. also Ro 3:3, II Ti 2:13 (ICC, CGT, in ll.; MM, s.v.).
2. = ἀπειθέω (Hdt.; on this sense in Ro 3:3, II Ti 2:13, v. Vaughan on Ro 3:3; Lft., Notes, 265; Thayer, s.v.).†

Abbott-Smith References

Book Refs
Mark 16:11 · 16:16
Luke 24:11 · 24:41
Acts 28:24
Romans 3:3
2 Timothy 2:13
1 Peter 2:7

Liddell-Scott-Jones

ἀπιστέω-έω,

future passive ἀπιστέωηθήσομαι[ἀπιστέωήσομαι in \_passive\_ sense, 5th-6th c.BC: Plato Philosophus “Respublica” 450c">Refs 5th c.BC+]:—to be ἄπιστος, and so:

__I disbelieve, distrust, ἐγὼ τὸ μὲν οὔ ποτ᾽ ἀπίστεον[Refs 8th c.BC+] —passive, τὴν γνῶσιν τοῦ οἰκείου ἀπιστέωεῖσθαι was distrusted, i.e. no one could be sure of knowing, [ἀπιστέωούμενοι, οὐ φιλοῦσι τοὺς ἀπιστέωοῦντας 5th-6th c.BC: Xenophon Historicus “Institutio Cyri (Cyropaedia)” 7.2.17, compare “Hier.” 4.1; ὑπὸ τῆς πατρίδος [prev. author] “Smp.” 4.29, compare 5th-6th c.BC: Plato Philosophus “Politicus” 271b, 5th-6th c.BC: Isocrates Orator 5.49:">Refs 5th c.BC+] —but mostly,
__I.2 with dative person, κρατέουσιν[ἀπιστέωήσω λόγοι; 5th c.BC: Sophocles Tragicus “Philoctetes” 1350, compare 5th c.BC: Thucydides Historicus 6.86; ἀ.τῇ ἐξ αὑτῶν ξυνέσει [prev. author] 3.37; τοῖς ἰάμασιν “IG” 4.951.24 (Epid.); ἡμῖν αὐτοῖς 4th c.BC: Aristoteles Philosophus “Ethica Nicomachea” 1112b10">Refs 5th c.BC+]; .τινί τι disbelieve one in a thing, [Refs 5th c.BC+]; οἷς ἠπίστησαν ἔχειν.. whom they suspected of having, [Refs 2nd c.BC+]
__I.3 c.infinitive, οὐδέν σ᾽ ἀπιστέω καὶ δὶς οἰμῶξαι I nothing doubt that.., [Refs 5th c.BC+]; . μὴ γενέσθαι τι to doubt that it could be, [ἀπιστέωοῦντες αὐτὸν μὴ ἥξειν [prev. author] 2.101, compare 4.40, 5th-6th c.BC: Plato Philosophus “Politicus” 301c, “R.” 555a; also ἀ. μὴ οὐκ ἐπιστήμη ᾖ ἡ ἀρετή [prev. author] “Men.” 89d; ἀ. πῶς.. “Phd.” 73b; ἀ. εἰ.. “APl.” 4.52 (1st c.AD: Philippus Epigrammaticus), 1st c.AD: Philo Judaeus 2.555; ὅτι.. 5th-6th c.BC: Plato Philosophus “Meno” 89d; ὡς “R.” 450c:">Refs 5th c.BC+] —passive, τὸ ἐπιτήδευμα ἀπιστέωεῖται μὴ δυνατὸν εἶναι it is not believed to be possible, [Refs]
__I.4 absolutely, to be incredulous, [ἀπιστέωεῖν 5th c.BC: Epicharmus Comicus 250; ἐπὶ τοῖς λεγομένοις 1st c.AD: Philo Judaeus 2.92. ">NT+5th c.BC+]
__II ={ἀπειθέω}, disobey, τινί[Refs 5th c.BC+]: absolutely, to be disobedient, τοῖς ἀπιστέωοῦσιν τάδε in these things, [Refs 5th c.BC+]; ἢν δ᾽ ἀπιστέωῶσι but if they refuse to comply, [Refs 5th c.BC+]
__II.2 to be faithless, εἰ ἡμεῖς ἀπιστέωοῦμεν, ἐκεῖνος πιστὸς μένει [NT]
__II.3 νεκρὸς τὸν θάνατον ἀπιστέωούμενος belying death, [Refs 1st c.AD+]
__III τὸ σῶμ᾽ οὐκ ἀπιστέωήσω χθονί, i.e. [Refs]will not hesitate to commit it.., [Refs 5th c.BC+]

LSJ Scripture Refs: Mark.16.162Tim.2.13