Borrowed from Classical Syriac ܨܶܢܳܪܬܐ (ṣennārtā, “fishing device, gaff; ritual crook; a curved-shape implement”), from Middle Persian snwl (sanwar, “bow”), from Avestan 𐬚𐬀𐬥𐬎𐬎𐬀𐬭 (θanuuar, “bow”).