κατακαίνω · katakainō — LSJ
= κατακτείνω, kill, in early writers in aor. 2 κατέκανον, X. Cyr. 4.6.5 (v.l. -καίνων), An. 3.2.12; 3 sg. subj. κατακάνῃ Anon. in PSI 9.1091.4; κατέκανον (for -έκτανον) is required by the metre in S. Ant. 1340: pf. part. -κεκονότες (cf. καίνω) shd. be read in X. An. 7.6.36: pres. in later Prose, Parth. 7.2, Arr. Ind. 11.10, App. Pun. 1, Eun. Hist. p.212D.; Hsch. has κατακαινιῶ· ἀποκτενῶ (fort. leg. κατακενίω, Dor. fut.).