An Etymological Dictionary of the German Language/Annotated/Wulst

by Friedrich Kluge

Wulst, feminine, ‘swelling, roll, pad,’ from the equivalent Middle High German (very rare) wulst, Old High German (rare) wulsta, feminine (also signifying the ‘turned up lip’). A derivative of Old High German wëllan, Middle High German wëllen, strong verb, ‘to make round, roll,’ to which Welle is allied.