Definition from Wiktionary, the free dictionary
Alternative forms 
- (uncountable, linguistics) The process by which a new word is formed by removing a morpheme (real or perceived) of an older word, such as the verb burgle, formed by removing -ar (perceived as a suffix forming an agent noun) from burglar.
- (countable) A word created in this way.
- Back-formations, such as "tambour" (for "play the tambourine"), are a staple of comedic wordplay.
- (a word created by back-formation): back-form
Derived terms 
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