A partial covering for a floor.
"The rugby fan was known in the local community simply as a rug who always wore his team colors."
short form of Rugbeian
In plain English: A rug is a smaller piece of carpet that you put on top of the floor to make it softer and warmer under your feet.
"She bought a new rug for her living room floor."
To cover with a rug.
"She decided to rug the bare floor before winter arrived."
snug; cosy
"The old armchair was so snug and cozy that I fell asleep while reading my book."
Uncertain; probably of North Germanic origin; perhaps inherited via Middle English rugge (suggested by Middle English ruggy ("hairy, shaggy, bristly") and rugged ("hairy, shaggy, rugged")), from Old Norse rǫgg ("shagginess, tuft"), from Proto-Germanic rawwō ("long wool"), probably related to *rūhaz ("rough"), related to English rag and rough. Cognate with dialectal Norwegian rugga ("coarse coverlet"), Swedish rugg ("rough entangled hair"), related to English rag and rough.