v.
 recline or stand in a relaxed or lazy way.
n.
  - Brit. a sitting room. 
▸a public sitting room in a hotel or theatre.
 ▸a seating area in an airport for waiting passengers.
 - Brit. a spell of lounging.
 
 
  Etymology
  C16 (in the sense ‘move indolently’): perh. symbolic of slow movement.