dandruff
dan.druff \'dan-dr*f\ \-e-\ n [prob. fr. dand- (origin unknown) + -ruff, of Scand origin; akin to] OHN hru-fa scab; akin to OHG hruf scurf, Lith kraupus rough : a scurf that forms on the scalp and comes off in small white or grayish scales - dan.druffy aj