τριστάτης
τριστάτης, one who stands next to the king and queen, vizier
Alas! Could not find the search term τριστάτης.
Found the closest form τριστάδιος. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.
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Parsed as:
✓ masculine nominative singular of τριστάδιος
No checked forms of τριστάτης in the morphology database.