Defeol or Defail: How To spell?

The word Defeol is misspelled against Defail, a verb meaning "To cause to fail."

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

You might be interested to know

Dismeol or Dismail?

Embreod or Embraid?

Feon or Fain?