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back formation

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noun Linguistics.

the analogical creation of one word from another word that appears to be a derived or inflected form of the first by dropping the apparent affix or by modification.
a word so formed, as typewrite from typewriter.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of back formation

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for back formation

back formation

noun

the invention of a new word on the assumption that a familiar word is derived from it. The verbs edit and burgle were so created from editor and burglar
a word formed by this process
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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