Sylabi or Syllabi: How To spell?

The word Sylabi is misspelled against Syllabi, which is plural of "Syllabus"

Syllabi has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings sy & abi which should not be misspelled with single 'L'
Wrong Spelling:  sy-l-abi 
Correct Spelling:  sy-ll-abi 
Find more wrongly spelled words of Syllabi to spell it well.