Haithenizing or Heathenizing: How To spell?

The word Haithenizing is misspelled against Heathenizing, which is present continuous of "Heathenize"

--> Heathenizing has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets h & thenizing is misspelled as 'AI'
Wrong Spelling:  h-ai-thenizing 
Correct Spelling:  h-ea-thenizing 
Find more wrongly spelled words of Heathenizing to spell it well.

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