The word "antestor" is often misspelled as "ancestor," which means a person from whom one is descended. The correct spelling is "antestor," with an "e" instead of an "o" in the middle of the word. The pronunciation of this word is [an-tes-ter], with the emphasis on the second syllable. The "e" in the middle of the word creates a schwa sound, which is pronounced as a weak or unstressed "uh" sound. Spelling errors can be avoided by paying attention to the correct sequence of letters in the word.