Seyth or Saith: How To spell?

The word Seyth is misspelled against Saith, which is past tense of "Say."

Word contains consecutive vowels 'AI' in between alphabets s & th is misspelled as 'EY'
Wrong Spelling: s-ey-th
Correct Spelling: s-ai-th
Explore spell check of Saith to spell without errors.