aibohphobia

Etymology
Deliberately constructed to be a, combining the suffix with its reversed spelling.

Appears first as a response to National Challenge #36 - in a newspaper column written by J Baxter Newgate. The challenge was to invent a phobia. The column did not identify the entrant. (Source: Orlando Sentinel, Oct 22, 1977)

Noun

 * 1)  An irrational fear of palindromes.