From WordNet (r) 3.0 (2006):
welt
n 1: a raised mark on the skin (as produced by the blow of a
whip); characteristic of many allergic reactions [syn:
wale, welt, weal, wheal]
2: a raised or strengthened seam
v 1: beat severely with a whip or rod; "The teacher often
flogged the students"; "The children were severely
trounced" [syn: flog, welt, whip, lather, lash,
slash, strap, trounce]
2: put a welt on; "welt the shoes"