ἀτύχημα

ατος, τό
A. misfortune, miscarriage, Antipho 3.4.5 (v.l.), Timocl. 6.18.
2. fault of ignorance, mistake, D. 23.70; opp. ἀδίκημα, ἁμάρτημα, Gorg. 11, Arist. Rh. 1374b6, EN 1135b12: euphem., crime, ἀ. πρὸς τὸ δημόσιον Is. 10.20, cf.Plb. 12.14.2.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project