cwrw m (plural cyrfau)
From Middle Welsh cwrwf, from Proto-Celtic [Term?], from Proto-Indo-European *ḱh₁erh₂-. Cognate with Cornish korev, Old Irish cuirm (Irish coirm, “feast”), Gaulish cerevisia (Latin cervisia, “beer”), Ancient Greek κεράννυμι (keránnumi, “to mix”), κρᾶσις (krâsis, “to mixture”), Sanskrit श्रायति (śrāyati, “to cook, boil”).