πολύφονον πολύφονος, murderous Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: masculine accusative singular ✓ feminine accusative singular neuter nominative singular neuter vocative singular neuter accusative singular of πολύφονος πολύφονος Singular Feminine Nominative – Genitive πολυφόνου Dative πολυφόνῳ Accusative πολύφονον Vocative –