Quick Definition
προαμαρτάνω v. I sin previously
Strong's Definition
to sin previously (to conversion)
Derivation: from G4253 (πρό) and G264 (ἁμαρτάνω);
KJV Usage: sin already, heretofore sin
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
προ-αμαρτάνω: pf. ptep. προημαρτηκώς ; to sin before: οἱ προημαρτηκότες, of those who before receiving baptism had been guilty of the vices especially common among the Gentiles, 2 Co. xii. 21; xiii. 2; in this same sense also in Justin Martyr, apol. i. c. 61; Clem. Al. strom. 4, 12; ef. Liicke, Conjectanea Exeget. I. (Gotting. 1837) p. 14 544. [but on the ref. of the προ- see Meyer on 2 Co. ll. ce. (R. V. heretofore)]. (Hdian. 3, 14, 18 [14 ed. Bekk.]; eccl. writ.)
Mounce Concise Greek Dictionary
προαμαρτάνω proamartanō 2x
to sin before; perf., to have already sinned, have sinned heretofore, 2 Cor. 12:21; 13:2*
Abbott-Smith Greek Lexicon
*† προ-αμαρτάνω, to sin before: II Co 12:21 13:2.†
Moulton & Milligan — Vocabulary of the Greek NT
προαμαρτάνω, ““sin before” (2 Cor 12%, 132): cf. OG/S 7511° (ii/B.c.) θεωρῶν οὖν ὑμᾶς μετανενοηκότας τε ἐπὶ τοῖς] προημαρτημένοις, with Dittenberger’s notes.
Liddell-Scott-Jones — Greek-English Lexicon
προαμαρτάνω (proamartanō) — to sin beforehand. προᾰμαρτάνω, fail or sin before, [NT]: perfect participle passive, τὰ προημαρτημένα [Refs 2nd c.BC+]