Perhaps from a (as a negative particle) and the base of meros; properly, to miss the mark (and so not share in the prize), i.e. (figuratively) to err, especially (morally) to sin -- for your faults, offend, sin, trespass.
see GREEK a
see GREEK meros
ἁμάρτανε (amartane) − 2 Occurrences
ἁμαρτάνει (amartanei) − 6 Occurrences
ἁμαρτάνειν (amartanein) − 1 Occurrence
ἁμαρτάνετε (amartanete) − 3 Occurrences
ἁμαρτάνοντα (amartanonta) − 1 Occurrence
ἁμαρτάνοντας (amartanontas) − 1 Occurrence
ἁμαρτάνοντες (amartanontes) − 2 Occurrences
ἁμαρτανόντων (amartanontōn) − 1 Occurrence
ἁμαρτάνουσιν (amartanousin) − 1 Occurrence
ἁμαρτάνων (amartanōn) − 1 Occurrence
ἁμάρτῃ (amartē) − 2 Occurrences
ἁμαρτήσαντας (amartēsantas) − 1 Occurrence
ἁμαρτήσαντος (amartēsantos) − 1 Occurrence
ἁμαρτησάντων (amartēsantōn) − 1 Occurrence
ἁμαρτήσασιν (amartēsasin) − 1 Occurrence
ἁμαρτήσει (amartēsei) − 1 Occurrence
ἁμαρτήσῃ (amartēsē) − 2 Occurrences
ἁμαρτήσωμεν (amartēsōmen) − 1 Occurrence
ἁμάρτητε (amartēte) − 1 Occurrence
ἥμαρτεν (ēmarten) − 3 Occurrences
ἥμαρτες (ēmartes) − 1 Occurrence
ἡμαρτήκαμεν (ēmartēkamen) − 1 Occurrence
ἥμαρτον (ēmarton) − 8 Occurrences