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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His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of back formation

First recorded in 1885–90

Words nearby back formation

backflip, back float, backflow, back focus, back foot, back formation, back forty, back four, backgammon, back gear, back green

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use back formation in a sentence

In any event, the men should be taught to take some form of a closed back-to-back formation.
Infantry Drill Regulations, United States Army, 1911|United States War Department
In any event, the men should be taught to take some form of a closed back to back formation.
Manual of Military Training|James A. Moss

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