Cicisbi or Cicisbei: How To spell?

The word Cicisbi is misspelled against Cicisbei, which is plural of "Cicisbeo"

Word end with consecutive vowels 'EI' preceded by alphabets 'cicisb' is misspelled as 'I' as letter 'E' is phonetically ignored
Wrong Spelling:  cicisb-i 
Correct Spelling:  cicisb-ei 
Find more wrongly spelled words of Cicisbei to spell it well.