köken: From Ancient Greek ἀπεχθάνομαι (apekhthánomai, “I am hated”) also with transitive sense since Hellenistic times. From ἀπεχθής (apekhthḗs, “hateful”) from ἀπ(ό) (“with emphasizing sense”) + ἔχθος n (ékhthos, “hatred”). Morphologically απ- + εχθ‑ + ‑άνομαι.
köken: From Old Japanese 厭(いと)ふ (itofu). Possibly cognate with 痛い (itai, “painful”) and 痛む (itamu, “to hurt”), both from Proto-Japonic *eta (“painful”)
köken: From a Vulgar Latin root *horrīre, from Latin horrēre (“to be afraid”) (other forms or parts of the verb from horrēscere, horrēscō as with many other 4th conjugation verbs); compare Aromanian urãscu; compare change in meaning also in Albanian urrej (“to hate”), Occitan orrir (“to hate, despise”). See also borî.
köken: From an unattested stem + -öl. Alternatively, suggested to be a Turkic borrowing from Proto-Turkic *yǖl- (“to be mad, crazy; anger; to be sexually excited”).