roommate
‘a person occupying the same room, flat, or house as another’
Lexical development traced from the Tamil root:
M.E. roum < O.E. rum ‘space, extent; sufficient space’ < Proto-G. ruman <ruma- ‘roomy, spacious’ + mate < roo < reue- < Tamil uṟu
roommate
English words derived from Tamil uṟu connoting ‘excess’