πιάτρα

Alas! Could not find the search term πιάτρα.
Found the closest form πιάξας. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.

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Parsed as:

aorist active participle masculine nominative singular (cp πιάζω)
aorist active participle masculine vocative singular (cp πιάζω) of πιέζω