Grisaolle or Grisaille: How To spell?

The word Grisaolle is misspelled against Grisaille, a noun meaning "A kind of French fancy dress goods."

Word contains consecutive vowels 'AI' in between alphabets gris & lle is misspelled as 'AO'
Wrong Spelling:  gris-ao-lle 
Correct Spelling:  gris-ai-lle 
Find more incorrect spellings of Grisaille to spell right way.

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