back-formation

noun
back-for·ma·tion | \ˈbak-fȯr-ˈmā-shən \

Definition of back-formation 

1 : a word formed by subtraction of a real or supposed affix from an already existing longer word (such as burgle from burglar)

2 : the formation of back-formations

First Known Use of back-formation

1888, in the meaning defined at sense 2

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Dictionary Entries near back-formation

backflip

backflow

back focus

back-formation

back forty

backfriend

back-front

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Time Traveler for back-formation

The first known use of back-formation was in 1888

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