From Vulgar Latin *bicŏrnĭa (“anvil”), from Latin bicornis (“two-horned”), from bi- (“two”) + cornī (“horns”), nominalized in the feminine with -a. Cognate with Spanish bigornia, Galician bigorna, French bigorne, early modern Italian bicornia, Andalusian Arabic, Moroccan Arabic, and Algerian Arabic بقرنية (buqurnīya).