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o- (1), op- Prefix "power to help"

Not productive in Spanish. From Latin ops 'id.' From Proto-Italic *opi- 'id.' From Proto-Indo-European *h3ep-i̯- "force." From *h3ep- "to work," "to force."

Indo-European: Hellenic: Ancient Greek ὄμπνη (ómpen) "corn;" Indo-Iranian: Sanskrit ápnas- "property," Young Avestan -haṇt- "rich;"