Boyavx or Boyaux: How To spell?

The word Boyavx is misspelled against Boyaux, which is plural of "Boyau"

Word contains consecutive vowels 'AU' in between alphabets boy & x is misspelled as 'AV'
Wrong Spelling:  boy-av-x 
Correct Spelling:  boy-au-x 
Find more incorrect spellings of Boyaux to spell right way.

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