Pallasse or Paillasse: How To spell?

The word Pallasse is misspelled against Paillasse, a noun meaning "An under bed or mattress of straw."

Word contains consecutive vowels 'AI' in between alphabets p & llasse is misspelled as 'A'
Wrong Spelling:  p-a-llasse 
Correct Spelling:  p-ai-llasse 
Explore spell check of Paillasse to spell without errors.

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