Achillayn or Achillean: How To spell?

The word Achillayn is misspelled against Achillean, meaning "Invulnerable."

Achillean has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets achill & n is misspelled as 'AY'
Wrong Spelling:  achill-ay-n 
Correct Spelling:  achill-ea-n 
Find more wrongly spelled words of Achillean to spell it well.

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