Spontanauties or Spontaneities: How To spell?

The word Spontanauties is misspelled against Spontaneities, which is plural of "Spontaneity"

Word contains consecutive vowels 'EI' in between alphabets spontan & ties is misspelled as 'AU'
Wrong Spelling:  spontan-au-ties 
Correct Spelling:  spontan-ei-ties 
Check more misspelled words of Spontaneities to spell it correct.