ἀτρεῖον No short definition found for ἀτρεῖον Found ἀτρεῖον with different capitalization. Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: ✓ Proper-name noun masculine dative singular of Ἀτρεύς Search the corpus for this form only: ἀτρεῖον ↗ ἀτρεῖον No checked forms of ἀτρεῖον in the morphology database.