The surname Knott has several origins. The English-language surname is derived from the Middle English personal name Knut, a cognate of the Old Norse personal name Knútr, which is in turn derived from knútr ("knot"). The surname Knott is also a variant spelling of the German-language surname Knoth, which is derived from the Middle High German knode, knote ("knot").
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Knott (surname) Wikipedia(Text) CC BY-SA