βροντεῖον
βροντεῖον, engine for making stage-thunder
Alas! Could not find the search term βροντεῖον.
Found the closest form βροντάν. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.
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Parsed as:
feminine accusative singular of βροντή
No checked forms of βροντεῖον in the morphology database.