Geunsay or Gainsay: How To spell?

The word Geunsay is misspelled against Gainsay, meaning "to deny to oppose"

Word contains consecutive vowels 'AI' in between alphabets g & nsay is misspelled as 'EU'
Wrong Spelling:  g-eu-nsay 
Correct Spelling:  g-ai-nsay 
Check more misspelled words of Gainsay to spell it correct.

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