Cannae or Cannei: How To spell?

The word Cannae is misspelled against Cannei, an adjective meaning "Artful; cunning; shrewd; wary."

Word ends with consecutive vowels 'EI' preceded by alphabets 'cann' is misspelled as 'AE'
Wrong Spelling:  cann-ae 
Correct Spelling:  cann-ei 
Explore spell check of Cannei to spell without errors.