köken: Attested since circa 1300. From Old Galician-Portuguese fumo (13th century, Cantigas de Santa Maria), from Latin fūmus, although the final vowel could imply an Old French borrowing. Cognate with Portuguese fumo and Spanish humo.
coyda que o bafo et fume daquel fogo que ensuzou et [empoçoou] as agoas et aterra daly
1348, J. Méndez Pérez & al. (eds.), El monasterio de San Salvador de Chantada, Santiago de Compostela: I. Padre Sarmiento, page 326