Why is it called hippopotomonstrosesquippedaliophobia?

Hippopotomonstrosesquipedaliophobia is probably taken from the root word sesquipedalian, which means “long word.” Therefore, sesquipedalophobia is technically more correct. But somewhere along the line, someone added references to the hippopotamus and monsters to make the word sound even more intimidating.

Is hippopotomonstrosesquippedaliophobia the longest word in the world?

Hippopotomonstrosesquippedaliophobia, a 36 character word supposedly meaning a fear of long words, is not officially known as the longest word in the English language despite its great length. At a length of 30 characters, it is the longest non-coined word to appear in any major English dictionary.

What is the rarest phobia ever?

Rare and Uncommon Phobias