Mmmm, praeteritio. I agree, it's a fabulous word, but part of the reason I fell instantly in love with "zeugma" is the way it sounds. Zeugma. It's fun to say, it's got an interesting etymology, and a cool definition. Makes for a fabulous word. (Strangely, I also really like the way "foibles" sounds, although it's not as intriguing in other ways. Saying "Aesop's foibles," though, is pretty amusing.)

I just don't think you can say "praeteritio" with quite the same emphasis.