Decaese or Decease: How To spell?

The word Decaese is misspelled against Decease, a noun meaning "Departure, especially departure from this life; death."

Decease has vowels 'ea' together mispronounced as 'ae'
Word contains consecutive vowels 'EA' in between alphabets dec & se is misspelled as 'AE'
Wrong Spelling:  dec-ae-se 
Correct Spelling:  dec-ea-se 
Explore spell check of Decease to spell without errors.

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