Origin uncertain; probably of North Germanic origin, compare dialectal Norwegian rugga (“coarse coverlet”), Swedish rugg (“rough entangled hair”), from Old Norse rǫgg (“shagginess; tuft”), from Proto-Germanic *rawwō (“long wool”), related to English rag and rough.
rug (plural rugs)
- A partial covering for a floor. 
- (Britain, Australia) A (usually thick) piece of fabric used for warmth (especially on a bed); a blanket. 
- (historical, now rare) A kind of coarse, heavy frieze, formerly used for clothing. 
- (historical, now rare) A cloak or mantle made of such a frieze. 
- (obsolete, rare) A person wearing a rug. 
- A cloth covering for a horse. 
- (obsolete, rare) A dense layer of natural vegetation that precludes the growth of crops. 
- (slang) The female pubic hair. 
- A rough, woolly, or shaggy dog.
- (slang) A wig; a hairpiece. 
- (colloquial) A dense growth of chest hair. 
rug (third-person singular simple present rugs, present participle rugging, simple past and past participle rugged)
- (Scotland) To pull roughly or hastily; to plunder; to spoil; to tear.
rug (comparative more rug, superlative most rug)
- (Britain, dialectal, obsolete) snug; cosy