An Etymological Dictionary of the German Language/reuten
reuten, vb., ‘to root out, grub up, from MidHG. riuten, ‘to root out, make fertile’; to this is allied OHG. riuti, MidHG. riute, n., ‘land made fertile by uprooting,’ OIc. ryðja, ‘to make fertile.’ Whether OHG. riostar, riostra, MidHG. riester, ‘plough, plough-handle,’ dial. Riester, is connected with this word is uncertain. See roden.