Vilus or Villus: How To spell?
The word Vilus is misspelled against Villus, a noun meaning "Fine hairs on plants, resembling the pile of velvet."
Villus has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings vi & us which should not be misspelled with single 'L'
Wrong Spelling:  vi-l-us  Correct Spelling:  vi-ll-us 
Check more misspelled words of Villus to spell it correct.