autology

1. (countable, literary, uncommon, uncountable)The study of oneself.

2. (countable, uncountable)The property of a word or phrase which describes itself.

   The words multisyllabic and sesquipedalian display autology: multisyllabic is a multisyllabic word, and sesquipedalian is a sesquipedalian word.

3. (broadly, countable, uncountable)The ability of a concept to apply to itself.

regular