The word Deudening is misspelled against Deadening, which is present continuous of "Deaden"
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Deadening has vowels 'ea' together mispronounced as 'eu'
Word contains consecutive vowels 'EA' in between alphabets d & dening is misspelled as 'EU'
Wrong Spelling:  d-eu-dening 
Correct Spelling:  d-ea-dening 
Check more misspelled words of Deadening to spell it correct.