apocopate
/ˌæpəˈkɒpeɪt/Definitions
1. verb
to shorten a word by cutting off a part of its ending, especially to form an abbreviation
“The linguist decided to apocopate the word “telephone” to “tele” for brevity.”
2. verb
to shorten a word by omitting its final syllable
“In some dialects, words like “cavalry” are apocopated to “cavalry”.”
3. noun
the act of apocopating a word
“The apocopation of words is a common phenomenon in language evolution.”