'separate' (se-parate == take a-part) and its derivatives are perhaps the most frequently misspelled English word on clp. Seems to be 'par' for the course. It has 2 e's bracketing 2 a's. It derives from the Latin 'parare', as does pare, so 'par' is the essential root of the word.
My gripe for the day, just to let non-native writers know what not to imitate. tjr -- http://mail.python.org/mailman/listinfo/python-list