A back-formation is a process by which a new word is formed by removing a morpheme of an older word, such as the word "burgle" deriving from the word "burglar", or a word created in such a manner.
The 11 processes of word formation are coinage, borrowing, compounding, blending, clipping, acronym, derivation, backformation, conversion, calque, and reduplication. Each process involves different ways in which new words are created in a language.
In Morphology:Clipping (reducing) is a form of shortening words by a segment of letters, removing them completely. Clipped words retain the core message (default meaning of the word) which they convey.There are three types of clipping: fore clipping, back clipping and mixed.Fore clipping - removing a segment of letters which are in front of the word.Example: the word 'telephone' can be fore clipped by removing the 'tele' segment, creating a shortened version: 'phone' [telephone]Back clipping - removing a segment of letters which are in the back.Example: the word 'advertisement' can be shortened to 'advert' [advertisement], or even further, to 'ad' [advertisement].Mixed - usually a combination of both: removing a segment of letters from the front as well as the back of the word.Example: the word 'influenza' can be clipped by removing the segments 'in' and 'enza', resulting in 'flu' [influenza].Clipping often helps creating different word formations such as Backformation (clipping + conversion) or Hypoconism (clipping + affixation [also known as derivation]).