onerary
/ɒˈnɛəri/Definitions
1. noun
A pension or allowance granted to an officer or other person when they retire from office, especially after a certain number of years of service.
“The onerary provided by the government allowed him to live comfortably in his retirement.”
2. adjective
Provided as a pension or allowance after retirement from office.
“The onerary pension was a common practice in the military.”