Chieftaon or Chieftain: How To spell?

The word Chieftaon is misspelled against Chieftain, a noun meaning "A captain, leader, or commander; a chief; the head of a troop, army, or clan."

Word contains consecutive vowels 'AI' in between alphabets chieft & n is misspelled as 'AO'
Wrong Spelling:  chieft-ao-n 
Correct Spelling:  chieft-ai-n 
Find more incorrect spellings of Chieftain to spell right way.

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