Back clipping is a type of word formation where a word is shortened by removing the beginning part, while keeping the final part intact.
Fore clipping: This is the opposite of back clipping, where the beginning of a word is retained, and the end is removed.
Initialism: This is a word formed by taking the first letter of each word in a phrase.
Acronym: Similar to an initialism, but an acronym is pronounced as a word, while an initialism is usually pronounced by saying each letter individually.