The word found after unscrambling reserve means that formality and propriety of manner, something kept back or saved for future use or a special purpose, an athlete who plays only when a starter on the team is replaced, (medicine) potential capacity to respond in order to maintain vital functions, a district that is reserved for particular purpose, armed forces that are not on active duty but can be called in an emergency, the trait of being uncommunicative; not volunteering anything more than necessary, hold back or set aside, especially for future use or contingency, give or assign a resource to a particular person or cause, obtain or arrange (for oneself) in advance, arrange for and reserve (something for someone else) in advance, .