as I've mentioned before, the reprint (paperback) is listed as available at ******.com -- I have to think that the information given at the "about mrs. byrne" link is out of date.

The Word Lover's Dictionary : Unusual, Obscure, and Preposterous Words, by Josefa Heifetz
Availability: Usually ships within 24 hours.

p.s. - I checked out the sample pages given online; it's exactly the same material.