ποσταία ποσταῖος, in how many days? Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: feminine accusative dual feminine nominative dual feminine vocative dual feminine nominative singular feminine vocative singular of ποσταῖος ποσταῖος Singular Masculine Nominative ποσταῖος Genitive – Dative – Accusative – Vocative –