Perer or Pairer: How To spell?

The word Perer is misspelled against Pairer, a noun meaning "One who impairs."

Word contains consecutive vowels 'AI' in between alphabets p & rer is misspelled as 'E'
Wrong Spelling:  p-e-rer 
Correct Spelling:  p-ai-rer 
Explore spell check of Pairer to spell without errors.

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