invalidate
The origin and history of invalidate.
Etymology
First recorded in 1649, borrowed from Middle French invalider, from invalide + -er; by surface analysis it can be read as in- + validate, or as invalid + -ate.
The origin and history of invalidate.
First recorded in 1649, borrowed from Middle French invalider, from invalide + -er; by surface analysis it can be read as in- + validate, or as invalid + -ate.
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