pensioner

Etymology

From Middle English pensioner, from Anglo-Norman pensionner and Old French pensionnier, from Medieval Latin pēnsiōnārius. Surface etymology is pension + -er.

noun

1. Someone who lives on a pension, especially the retirement or old age pension.
2. (by extension) Someone who is at the age at which one typically receives a pension; an elderly person.
3. (obsolete, UK, Cambridge University) A student who is not dependent on any foundation for support, but pays all university charges; at Oxford called a commoner.
   Coordinate term: sizar