LSJ
Pass., (< ἄτη) suffer, be in distress, in Trag. always in pres. part. ἀτώμενος S. Aj. 384, Ant. 17, 314, E. Supp. 182, exc. ἀτώμεσθα S. Aj. 269; ἀτασθῶσιν is dub. in Hes. Cat. Oxy. 1358 Fr. 2.13. as law-term, αἴ τις ἀταθείη the injured party, Leg. Gort. 4.29; but ὁ ἀταμένος the loser in a suit, ib. 10.21; ἀϜατᾶται suffers a penalty, IG 5(1).1155 (Gythium); — Act., ἀτάω, aor. subj. 3 sg. ἀτάσῃ dub. in Leg. Gort. 6.23, 43.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
praes. pass., Schaden leiden, unglücklich sein, Soph. Aj. 622 ; Eur. Suppl. 194 ; Ggstz σεσωσμένος Soph. Ant. 314.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)