τηθίδος τηθίς, a father’s or motherʼs sister, aunt Morpho works with a static database. If you like, you can compare the output of Morpheus.Parsed as: feminine genitive singular of τηθίς Search the corpus for this form only: τηθίδος τηθίς Feminine SingularDualPlural Nominative – – – Genitive – – – Dative – – – Accusative τηθίδα – – Vocative – – –