rug
rug \'r*g\ n [(assumed) ME, rag, tuft, of Scand origin; akin to ON ro:gg
tuft; akin t]o L ruere to rush, fall, dig up, Skt ravate he breaks up 1: a
piece of thick heavy fabric usu. with a nap or pile used as a floor co
vering 2: a floor mat of an animal pelt {bearskin ~} 3: a lap robe
Webster's English Dictionary