Disduning or Disdaining: How To spell?

The word Disduning is misspelled against Disdaining, which is present continuous of "Disdain"

Word contains consecutive vowels 'AI' in between alphabets disd & ning is misspelled as 'U'
Wrong Spelling:  disd-u-ning 
Correct Spelling:  disd-ai-ning 
Check more misspelled words of Disdaining to spell it correct.

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