These two words came up when older son and I were talking. We were each familiar with one, but not the other, and naturally they were not the same. So I looked them up. They are similar, and have similar, but not identical, meanings.
I tried to cut and paste the Google's results, but Blogger's reinterpretation of the html code was feeble (and confused, i.e. ugly). I spent some time fighting with it (good wake-up exercise), but finally decided that a screen shot would probably work better.