luncheonette
‘a small restaurant that serves simple, easily prepared meals’
Lexical development traced from the Tamil root:
luncheon ‘light repast between mealtimes’ + -ette < O.F. -et < Vulgar Lat. -ittum / -itta < et < -et < Tamil iṭṭu
luncheonette
English words derived from iṭṭu connoting 'small'