Mustress or Maistress: How To spell?
The word Mustress is misspelled against Maistress, a noun meaning "Mistress."
Word contains consecutive vowels 'AI' in between alphabets m & stress is misspelled as 'U'Wrong Spelling:  m-u-stress  Correct Spelling:  m-ai-stress 
Check more misspelled words of Maistress to spell it correct.