WO'N, as I mentioned in replying to your email, this is just a recapitulation of Mrs. Byrne's definition and I'd like to know her source. (I can safely claim this because many of Logolepsy's definitions track Mrs. B., and her book is much more accessible than a great majority of her bibliographical source material.)

in fact, I have a growing list of words that I've found only in the Dictionary of Unusual, Obscure, and Preposterous Words (and web sites that borrow extensively, such as Grandiloquent and Phrontistery) but in none of the "usual" sources.