This dictionary contains more than 1,250 entries, illustrated by some 10,000 examples, all defined and explained. It’s based on my book Ologies and Isms: Word Beginnings and Endings, published by Oxford University Press in 2002. That went out of print in 2008 and I immediately made it available as a free service. For more about the site, see the Introduction. For more about me, see About the author.
May 2020. After a long hiatus, I have at last been able to find time to update this site to modern web standards. At the same time I’ve added a proper contact page and made numerous small edits and updates. I hope that more will follow.