sweal

verb5

1. •
   To burn slowly.
2. •
   (dialect) To consume with fire; burn.
3. •
   To singe; scorch; dress (as a hog) with burning or singeing.
4. •
   To melt and run down, as the tallow of a candle; waste away without feeding the flame.

   • [M]ind ye dinna let the candle sweal as ye gang alang the wainscot parlour, and haud a' the house scouring to get out the grease again. — 1816
5. •
   (dialect) To make disappear; cause to waste away; diminish; reduce.

   • "He thinks it's only a tumour!" cried Annie to her mother. "And he can sweal it away." — 1913