Dadened or Deadened: How To spell?

The word Dadened is misspelled against Deadened, which is past tense of "Deaden"

Deadened has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets d & dened is misspelled as 'A'
Wrong Spelling:  d-a-dened 
Correct Spelling:  d-ea-dened 
Explore spell check of Deadened to spell without errors.

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