sweal

To burn slowly.

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.

To singe; scorch; dress (as a hog) with burning or singeing.

To consume with fire; burn.

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."