ζέρνα

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

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Parsed as:

neuter nominative plural (cp ζέρεθρον)
neuter vocative plural (cp ζέρεθρον)
✓ neuter accusative plural (cp ζέρεθρον) of βάραθρον