Overgreytness or Overgreatness: How To spell?

The word Overgreytness is misspelled against Overgreatness, a noun meaning "Excessive greatness."

Overgreatness has vowels 'ea' together mispronounced as 'ey'
Word contains consecutive vowels 'EA' in between alphabets overgr & tness is misspelled as 'EY'
Wrong Spelling:  overgr-ey-tness 
Correct Spelling:  overgr-ea-tness 
Explore spell check of Overgreatness to spell without errors.

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