υἱωνοῖο υἱωνός, a grandson Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: ✓ masculine genitive singular of υἱωνός Search the corpus for this form only: υἱωνοῖο υἱωνός Masculine SingularDualPlural Nominative υἱωνός – υἱωνοί Genitive υἱωνοῖο – – Dative – – – Accusative – – – Vocative – – –