ἀτακτ-έω,
of a soldier, to be undisciplined, opposed to εὐτακτέω, [[ 5th-6th c.BC: Xenophon Historicus “Institutio Cyri (Cyropaedia)” 7.2.6, 4th c.BC: Demosthenes Orator 3.11; τοὺς ἀτακτοῦντας τῶν τριηράρχων “IG” 2.809b13] Refs 5th c.BC+]:—passive, πολλὰ γὰρ ἠτάκτητο αὐτοῖς[[ 1st c.AD: Josephus Historicus “Antiquitates Judaicae” 17.10.10] Refs 1st c.AD+]: generally, neglect one's duty, fail to discharge obligation, [[ 5th c.BC: Elephantine Papyri 2.13(3rd c.BC), NT.2Thes.3.7, “POxy.” 275.24(1st c.AD). ] NT+5th c.BC+]
__2 generally, lead a disorderly life, [[ 5th c.BC: Lysias Orator 14.18, 5th-6th c.BC: Xenophon Historicus “Oeconomicus” 7.31: with _genitive_, τῆς πατρίου ἀγωγῆς] Refs 5th c.BC+] to desert it, [[ 1st-2nd c.AD: Plutarchus Biographus et Philosophus 2.235b. ] Refs 1st c.AD+]
__3 raise a riot or rebellion, [[ “OGI” 200.6 (4th c.AD).] Refs 4th c.AD+]