An Etymological Dictionary of the German Language/Wulst
Appearance
Wulst, f., ‘swelling, roll, pad,’ from the equiv. MidHG. (very rare) wulst, OHG. (rare) wulsta, f. (also signifying the ‘turned up lip’). A derivative of OHG. wëllan, MidHG. wëllen, str. vb., ‘to make round, roll,’ to which Welle is allied.