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superannuate

[soo-per-an-yoo-eyt] /ˌsu pərˈæn yuˌeɪt/
verb (used with object), superannuated, superannuating.
1.
to allow to retire from service or office on a pension because of age or infirmity.
2.
to set aside as out of date; remove as too old.
verb (used without object), superannuated, superannuating.
3.
to be or become old, out of date, or retired.
Origin
1640-1650
1640-50; back formation from superannuated
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for superannuate

superannuate

/ˌsuːpərˈænjʊˌeɪt/
verb (transitive)
1.
to pension off
2.
to discard as obsolete or old-fashioned
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for superannuate
v.

1640s, back-formation from superannuated. Related: Superannuating.

Online Etymology Dictionary, © 2010 Douglas Harper
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