Rapili or Rapilli: How To spell?

The word Rapili is misspelled against Rapilli, a noun meaning "Lapilli."

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