The word Bivoulted is misspelled against Bivaulted, an adjective meaning "Having two vaults or arches."
-->
Word contains consecutive vowels 'AU' in between alphabets biv & lted is misspelled as 'OU'
Wrong Spelling:  biv-ou-lted 
Correct Spelling:  biv-au-lted 
Check more misspelled words of Bivaulted to spell it correct.