Sextean or Sextain: How To spell?

The word Sextean is misspelled against Sextain, a noun meaning "A stanza of six lines; a sestine."

Word contains consecutive vowels 'AI' in between alphabets sext & n is misspelled as 'EA'
Wrong Spelling:  sext-ea-n 
Correct Spelling:  sext-ai-n 
Explore spell check of Sextain to spell without errors.

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