superannuate
/ˌsuːpəɹˈænjueɪt/verb
University
1
To retire or put out of use due to age.
2
To show to be obsolete due to age.
3
To retire due to age.
4
To become obsolete or antiquated.
5
To give a pension to, on account of old age or other infirmity; to cause to retire from service on a pension.