v.
    - retain for future use.
- arrange for (a seat, ticket, etc.) to be kept for the use of a particular person.
- retain or hold (a right or entitlement).
- refrain from delivering (a judgement or decision) without due consideration or evidence.
n.
        - 
(often reserves)
 a reserved supply of a commodity. ▸funds kept available by a bank, company, or government. ▸a part of a company's profits added to capital rather than paid as a dividend. 
- a body of troops withheld from action to reinforce or protect others, or additional to the regular forces and available in an emergency.
- an extra player in a team, serving as a possible substitute. ▸
(the reserves)
 the second-choice team. 
- a reservation for a native people.
- a protected area for wildlife.
- a lack of warmth or openness.
- qualification or doubt attached to a statement or claim.
- (in ceramics or textiles) an area in which the original material or background colour remains visible.
Derivative
  
    - reservable adj.
- reserver n.
 
  Etymology
  ME: from OFr. reserver, from L. reservare ‘keep back’.