ἀτακτέω

ἀτακτέω -ῶ

(ἄτακτος),

primarily, of soldiers marching, to be out of order, to quit the ranks; hence, metaphorically, to be remiss, fail in the performance of duty (in π., of truancy on the part of an apprentice): 2 Thessalonians 3:7 (on ἀ. and its cognates, see M, Th., 152 ff.; MM, s.vv.).