Sucubi or Succubi: How To spell?
The word Sucubi is misspelled against Succubi, which is plural of "Succubus"
Succubi has double "cc" is mispronounced as "c"Remember double 'CC' in between the strings Su & ubi which should not be misspelled with single 'C'
Wrong Spelling:  Su-c-ubi  Correct Spelling:  Su-cc-ubi 
Check more misspelled words of Succubi to spell it correct.