superannuate

Back-formation from superannuated; Latin super "over" + annus "year"

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superannuate (third-person singular simple present superannuates, present participle superannuating, simple past and past participle superannuated)

1. (transitive) To retire or put out of use due to age.

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2. (transitive) To show to be obsolete due to age.
3. (intransitive) To retire due to age.
4. (intransitive) To become obsolete or antiquated.
5. (transitive) To give a pension to, on account of old age or other infirmity; to cause to retire from service on a pension.