περκνὸν περκνός, dark coloured Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: ✓ masculine accusative singular ✓ neuter nominative singular neuter vocative singular neuter accusative singular of περκνός περκνός Singular MasculineNeuter Nominative – περκνὸν Genitive – – Dative – – Accusative περκνὸν – Vocative – –