η, ον [ι], Ep. form of ἶσος, alike, equal, Hom., only fem. sg. and pl., always in set phrases (exc. [ἵππους]… σταφύλῃ ἐπὶ νῶτον ἐΐσας equal in height, Il. 2.765); most freq. of a feast, equal, i.e.
equally shared, of which each partakes alike, esp. of sacrificial feasts or of meals given to a stranger (for on other occasions the greatest men had the best portions), δαιτὸς ἐΐσης 1.468, al. ofships, even or well-balanced, νηὸς ἐΐσης 15.729; νῆες ἐῗσαι Od. 5.175, al. of a shield, evenly balanced, ἀσπίδα πάντοσ’ ἐΐσην Il. 12.294, 13.157, 160, etc. of the mind, even, well-balanced, φρένας ἔνδον ἐΐσας Od. 11.337, 14.178.