Defaesance or Defeasance: How To spell?

The word Defaesance is misspelled against Defeasance, a noun meaning "A condition, relating to a deed, which being performed, the deed is defeated or rendered void; or a collateral deed, made at the same time with a feoffment, or other conveyance, containing conditions, on the performance of which the estate then created may be defeated."

Defeasance has vowels 'ea' together mispronounced as 'ae'
Word contains consecutive vowels 'EA' in between alphabets def & sance is misspelled as 'AE'
Wrong Spelling:  def-ae-sance 
Correct Spelling:  def-ea-sance 
Explore spell check of Defeasance to spell without errors.

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