διά-πτωμα · dia-ptōma — LSJ
stumble, slip, Philem. 60; error, Chrysipp.Stoic. 2.215, Phld. Herc. 1251.5; failure, opp. ἐπίτευγμα, Id. Po. 5.21; μεγάλοις δ. περιπίπτειν fall in with great losses, IPE 12.32.55 (Olbia), cf. SIG 364.62 (Ephesus); loss, deficiency in accounts, PHib. 1.52.9 (iii B.C.), etc.