προπερυσινός
προπερυσινός, of the year before last
Alas! Could not find the search term προπερυσινός.
Found the closest form προπέρυσιν. Other nearby forms can be found in the wordwheel, or perhaps try searching again without accents.
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Parsed as:
✓ adverb of προπέρυσι
No checked forms of προπερυσινός in the morphology database.