Right. So my score: 1 of 22.
The only word I knew was Grimoire, the meeting of which I cannot describe in great detail, but am fairly certain came about while reading Wishsong of Shannara before I realized what shameless and poorly conceived counterfeit Tolkien Terry Brooks was dolling out. Anyway, hooray for my young love of fantasy novels. They led me to know at least one linguistic oddity.
I will say that of the list, I found "retromingent" most interesting. I mean, urinating backwards has my mind picturing all sorts of bizarre things.
Ex Libris: Confessions of a Common Reader,
"The Joy of Sesquipedalians"