Main Entry: su·per·an·nu·ate

Pronunciation: \ˌsü-pər-ˈan-yə-ˌwāt\

Function: verb

Inflected Form(s): su·per·an·nu·at·ed; su·per·an·nu·at·ing

Etymology: back-formation from superannuated

Date: circa 1633

transitive verb 1 : to make, declare, or prove obsolete or out-of-date
2 : to retire and pension because of age or infirmityintransitive verb 1 : to become retired
2 : to become antiquated

— su·per·an·nu·a·tion \-ˌan-yə-ˈwā-shən\ noun