Acheian or Achaian: How To spell?

The word Acheian is misspelled against Achaian, a noun meaning "A native of Achaia; a Greek."

Word contains consecutive vowels 'AI' in between alphabets ach & an is misspelled as 'EI'
Wrong Spelling:  ach-ei-an 
Correct Spelling:  ach-ai-an 
Find more wrongly spelled words of Achaian to spell it well.

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