sweal

Etymology

From Middle English swelen, from Old English swelan (“to burn, be burnt up, inflame”) (compare Old English swǣlan (“to burn”)), from Proto-West Germanic *swelan, from Proto-Germanic *swelaną (“to smoulder, burn slowly, create a burningly cold sensation”), from Proto-Indo-European *swel- (“to shine, warm, smoulder, burn”). Cognate with Dutch zwelen (“to smoulder”), Low German swelen (“to smoulder”), German schwelen (“to smoulder”), Icelandic svala (“to cool”). Related to swelter.