Hippopotomonstrosesquippedaliophobia is quite possibly the longest word in the word reference — and, in an unexpected bend, is the name for a fear of long words. Sesquipedalophobia is one more term for the long words phobia.
The American Mental Affiliation doesn't formally acknowledge this phobia. All things being equal, hippopotomonstrosesquippedaliophobia is seen as a social phobia of the long word.
The most recent release of the Demonstrative and Factual Manual of Mental Issues (DSM-5) frames an unmistakable definition of social phobias.
Read more: https://apkbeasts.com/fear-of-long-words/