Haythenesse or Heathenesse: How To spell?

The word Haythenesse is misspelled against Heathenesse, a noun meaning "Heathendom."

Heathenesse has vowels 'ea' together mispronounced as 'ay'
Word contains consecutive vowels 'EA' in between alphabets h & thenesse is misspelled as 'AY'
Wrong Spelling:  h-ay-thenesse 
Correct Spelling:  h-ea-thenesse 
Explore spell check of Heathenesse to spell without errors.

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