"mark made on the skin by a whip," 1808, probably an alteration of wale, possibly by confusion with weal "welt," and obsolete wheal "pimple, pustule" (1440), from O.E. verb hwelian "to form pus, bring to a head."
Main Entry: wheal Pronunciation: 'hwE(&)l, 'wE(&)l Function: noun : a suddenly formed elevation of the skin surface: as a:WELT b: the transient lump occurring at the site of injection of a solution before the solution is normallydispersed c: a flat burning or itching eminence on the skin wheals>