βίσωνες βίσων, bison Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: ✓ common nominative plural common vocative plural of βίσων βίσων Common SingularDualPlural Nominative – – βίσωνες Genitive – – – Dative – – – Accusative – – – Vocative – – –