itaiitai — noun: a bone disease caused by cadmiumShowing up next to nowhere online, itaiitai apparently is a real thing. Its name purportedly originates from the Japanese expression for "ouch, ouch." While I can't find any pronunciation guide online, I believe it's six syllables: "eee-tai-ee-tai." The book I got this from, The Superior Person's Book of Words, notes that the word is of interest in that its etymology could be a pattern for new English names for diseases and disorders — "eekeek" for arachnophobia, "unhunh" for constipation, "uhoh" for premature ejaculation, as so forth. Seems reasonable.
There must be a way to work this word into a clever, sentence-long palindrome.