ὀίω
From LSJ
ὑπὸ δὲ τῆς φιλαυτίας παρηγμένοι ἄλογα φασὶν τὰ ζῷα ἐφεξῆς τὰ ἄλλα σύμπαντα → it is self-love which leads them to say that all the other animals without exception are non-rational
English (Autenrieth)
opt. οἴοιτο, ipf. ὠίετο, aor. ὀίσατο, pass. aor. ὠίσθην, part. ὀισθείς: verb of subjective view or opinion, think, believe, fancy, regularly foll. by inf.; often iron. or in litotes, ὀίω, methinks, Od. 8.180, Il. 13.263; likewise parenthetically (opinor), Od. 16.309; sometimes to be paraphrased, ‘suspect,’ or when the reference is to the future, ‘expect’; implying apprehension, Od. 19.390 . γόον δ' ὠίετο θῦμός, was ‘bent on,’ or ‘engrossed with’ lamentation, Od. 10.248; once impers., like δοκεῖ, Od. 19.312.