lounge: [16] It is the verb lounge (originally ‘move indolently’) which came first; its application as a noun to a ‘room where one can sit and take one’s ease’ came later, in the 18th century. It is not at all clear where the word came from, but some have linked it with the long obsolete noun lungis, which denoted both a ‘gangling foolish fellow’ and ‘someone who is slow or dilatory at doing things’. This was borrowed in the 16th century from French longis, which was apparently a generic application of Longīnus, the name of the Roman centurion who pierced Christ’s side with a spear as he was hanging on the cross. [lounge etymology, lounge origin, 英语词源]