Greul or Grail: How To spell?

The word Greul is misspelled against Grail, a noun meaning "A book of offices in the Roman Catholic Church; a gradual."

Word contains consecutive vowels 'AI' in between alphabets gr & l is misspelled as 'EU'
Wrong Spelling: gr-eu-l
Correct Spelling: gr-ai-l
Check more misspelled words of Grail to spell it correct.