ὀρθόδοξοι ὀρθόδοξος, right in opinion Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: feminine nominative plural (newmorph18) feminine vocative plural (newmorph18) masculine nominative plural (newmorph18) masculine vocative plural (newmorph18) of ὀρθόδοξος ὀρθόδοξος No checked forms of ὀρθόδοξος in the morphology database.