(Think this may have gone out earlier, but I want to make sure.)
There are twelve words in the language that end with the sound "seed." There are three different spellings for that sound: -sede, -ceed, and -cede. Here is the breakdown:
supersede (the ONLY word in the language with this spelling)
exceed, succeed, proceed (acroynym ESP to help you remember)
accede, antecede, cede, intercede, precede, recede, secede, supercede
Happy punctuating!
Margie