Inherited from Old Spanish tafur, from Arabic تَكْفُور (takfūr, “Armenian king”), from Middle Armenian թագւոր (tʻagwor, “king”), from Old Armenian թագաւոր (tʻagawor, “king”), from Parthian *tag(a)-bar (“king”, literally “crown bearing”). The first part goes back to Proto-Indo-European *teg-, the second part goes back to Proto-Indo-European *bʰer-. Cognate with Galician tafur, Portuguese taful and Turkish tekfur.