Defeolance or Defailance: How To spell?

The word Defeolance is misspelled against Defailance, a noun meaning "Failure; miscarriage."

Word contains consecutive vowels 'AI' in between alphabets def & lance is misspelled as 'EO'
Wrong Spelling:  def-eo-lance 
Correct Spelling:  def-ai-lance 
Find more incorrect spellings of Defailance to spell right way.

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