Flambeax or Flambeaux: How To spell?

The word Flambeax is misspelled against Flambeaux, which is plural of "Flambeau"

Word contains consecutive vowels 'AU' in between alphabets flambe & x is misspelled as 'A' as letter 'U' is phonetically ignore
Wrong Spelling: flambe-a-x
Correct Spelling: flambe-au-x
Explore spell check of Flambeaux to spell without errors.