Raessert or Reassert: How To spell?

The word Raessert is misspelled against Reassert, a verb meaning "To assert again or anew; to maintain after an omission to do so."

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

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