Ludanum or Laudanum: How To spell?

The word Ludanum is misspelled against Laudanum, a noun meaning "Tincture of opium, used for various medical purposes."

Word contains consecutive vowels 'AU' in between alphabets l & danum is misspelled as 'U' as letter 'A' is phonetically ignored
Wrong Spelling: l-u-danum
Correct Spelling: l-au-danum
Check more misspelled words of Laudanum to spell it correct.