Defrader or Defrauder: How To spell?

The word Defrader is misspelled against Defrauder, a noun meaning "One who defrauds; a cheat; an embezzler; a peculator."

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