εἰκοσιὲν εἰκοσιείς, twenty-one Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: numeral neuter nominative singular numeral neuter accusative singular of εἰκοσιείς εἰκοσιείς No checked forms of εἰκοσιείς in the morphology database.