Πλεῖστος Πλειστός, the river Plistus Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: ✓ Proper-name noun masculine nominative singular (accent varies) of Πλειστός Search the corpus for this form only: Πλεῖστος Πλειστός Masculine SingularDualPlural Nominative Πλεῖστος – – Genitive Πλειστοῦ – – Dative – – – Accusative – – – Vocative – – –