scurf (n.) Look up scurf at Dictionary.com
late Old English sceorf, from Proto-Germanic *skurf- (cognates: Danish skurv, Middle Dutch scorf, Dutch schurft, Old High German scorf, German Schorf "scurf"), probably related to Old English sceorfan "to gnaw," scearfian "to cut into shreds," from PIE *skerp-, from root *(s)ker- "to cut" (see shear (v.)).