superannuate

verb
su·​per·​an·​nu·​ate | \ ˌsü-pər-ˈan-yə-ˌwāt How to pronounce superannuate (audio) \
superannuated; superannuating

Definition of superannuate

transitive verb

1 : to make, declare, or prove obsolete or out-of-date
2 : to retire and pension because of age or infirmity

intransitive verb

1 : to become retired
2 : to become antiquated

Other Words from superannuate

superannuation \ ˌsü-​pər-​ˌan-​yə-​ˈwā-​shən How to pronounce superannuation (audio) \ noun

First Known Use of superannuate

1649, in the meaning defined at transitive sense 1

History and Etymology for superannuate

back-formation from superannuated

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Time Traveler for superannuate

The first known use of superannuate was in 1649

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