Gynsyd or Gainsaid: How To spell?

The word Gynsyd is misspelled against Gainsaid, which is past tense of "Gainsay"

Word contains consecutive vowels 'AI' twice is misspelled as 'Y'
Wrong Spelling:  g-y-ns-y-d 
Correct Spelling:  g-ai-ns-ai-d 
Navigate all incorrect spellings of Gainsaid to spell it right.

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