An Etymological Dictionary of the German Language/Dorn

by Friedrich Kluge

Dorn, m., ‘thorn, prickle,’ from the equiv. MidHG. and OHG. dorn, m.; corresponds to Goth. þaurnus, OIc. þorn, AS. þorn, E. thorn, Du. doorn, OSax. thorn, ‘thorn’; from pre-Teut. trnu-. Comp. OSlav. trŭnŭ, ‘thorn,’ Sans. tṛna, ‘blade of grass.’