ἔγκοτ-ος · enkot-os — LSJ
bearing a grudge, spiteful, malignant, στύγος A. Ch. 392 (lyr.); of the Erinyes, ib. 924, 1054; φθόνος AP 7.40 (Diod.). Adv. -τως, ἔχειν Ph. 2.520.
Subst. ἔγκοτος, ὁ, grudge, ἔγκοτον ἔχειν τινί Hdt. 3.59, 9.110; τινός for a thing, Id. 8.29; διά τι Id. 6.73, cf. 133; also ἔγκοτον, τό, D.H. 9.7.