Attunting or Attainting: How To spell?

The word Attunting is misspelled against Attainting, which is present continuous of "Attaint"

Word contains consecutive vowels 'AI' in between alphabets att & nting is misspelled as 'U'
Wrong Spelling: att-u-nting
Correct Spelling: att-ai-nting
Check more misspelled words of Attainting to spell it correct.