superannuate


su·per·an·nu·ate

verb \ˌsü-pər-ˈan-yə-ˌwāt\
su·per·an·nu·at·edsu·per·an·nu·at·ing

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:  to make, declare, or prove obsolete or out-of-date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
su·per·an·nu·a·tion \-ˌan-yə-ˈwā-shən\ noun

Origin of SUPERANNUATE

back-formation from superannuated
First Known Use: circa 1633

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