D defs.my
Entry 3 senses · 2 variants Webster, 1913

Superannuate

· Su·per·an·nu·ate · IPA /ˌsuːpəɹˈænjueɪt/
01 v. t. To impair or disquality on account of age or infirmity.
imp. & p. p. Superannuated; p. pr. & vb. n. Superannuating
  1. 1.
    To impair or disquality on account of age or infirmity.
  2. 2.
    To give a pension to, on account of old age or other infirmity; to cause to retire from service on a pension.
02 v. i. To last beyond the year; -- said of annual plants.
  1. 1.
    To last beyond the year; -- said of annual plants.[Obs.]