Gryellade or Greillade: How To spell?

The word Gryellade is misspelled against Greillade, a noun meaning "Iron ore in coarse powder, prepared for reduction by the Catalan process."

Word contains consecutive vowels 'EI' in between alphabets gr & llade is misspelled as 'YE'
Wrong Spelling:  gr-ye-llade 
Correct Spelling:  gr-ei-llade 
Explore spell check of Greillade to spell without errors.