The story
- Middle English · inherited fromblot“blot, spot, stain, blemish”
- English todayblot
From Middle English blot (“blot, spot, stain, blemish”). Perhaps from Old Norse *blettr (“blot, stain”) (only attested in documents from after Old Norse transitioned to Icelandic blettur), or from Old French bloche (“clod of earth”).
Etymology from Wiktionary, CC BY-SA 4.0.