An anagram is when a new word/phrase is formed from rearranging the letters in another word/phrase.
An antigram when an anagram of a word is its opposite. It is a portmanteau of Anti meaning against an Anagram.
Examples
Anagrams
Antigrams
Please feel free to leave any other examples in the comment section below.
An etymology is a study of words. It often means looking at the origin of a word.
Interesting Examples
A demonym is a term for a name for an inhabitant of a place.
Examples
An acronym is an abbreviation made up of the beginning letters of the words. It is usually also one which is pronounceable.
Alternatively, an initialism is a term made up of the beginning letters of the words. It is usually also one which is pronounced by its letters.
A similar word is a backronym. A backronym is a blend of the word “back” and “acornym”.
Examples
Acronym
Initialism
Backronym
An Autological Word is a word which describes itself.
An autological is also known as a homological word from homo meaning same. The antonym to autological is heterological from hetero meaning different.
Examples of autological words are:
Examples of heterological words are:
Jacks Linguistics 