Scruff «загривок».
"nape of the neck," 1790, altered (by influence of scruff
"crust") from scuft (1787), probably related to N.Fris. skuft
"back of the neck of a horse" and Du. schoft "withers of a
horse," from a common Gmc. source (cf. O.N. skopt "hair of the
head," Goth. skuft, M.H.G. schopf, Ger. Schopf).
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