Cheventeen or Cheventein: How To spell?

The word Cheventeen is misspelled against Cheventein, a noun meaning "A variant of Chieftain."

Word contains consecutive vowels 'EI' in between alphabets chevent & n is misspelled as 'EE'
Wrong Spelling:  chevent-ee-n 
Correct Spelling:  chevent-ei-n 
Explore spell check of Cheventein to spell without errors.