welter

Etymology

From Middle English welteren, equivalent to welt + -er (frequentative suffix). Cognates include German Low German weltern (“to wallow; roll”), Old Norse velta (Danish vælte), German wälzen, Gothic 𐍅𐌰𐌻𐍄𐌾𐌰𐌽 (waltjan). Akin to wallow and Latin volvō.