Grulle or Graille: How To spell?

The word Grulle is misspelled against Graille, a noun meaning "A halfround single-cut file or fioat, having one curved face and one straight face, -- used by comb makers."

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

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