reservation
‘retain; keep’
Lexical development traced from the Tamil root:
E. reseruation, reservacione, reservatione, reseruacyon, reseruacioun, reseruacoun < O.F. reservation < La.Lat. reservationem < Lat. reservare ‘keep back, save up; retain, preserve’ < re- ‘back’ + servare ‘to keep, save, preserve, protect’ < zuhv < ser- < Tamil iṟai