Helenism or Hellenism: How To spell?
The word Helenism is misspelled against Hellenism, a noun meaning "A phrase or form of speech in accordance with genius and construction or idioms of the Greek language; a Grecism."
Hellenism has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings he & enism which should not be misspelled with single 'L'
Wrong Spelling:  he-l-enism  Correct Spelling:  he-ll-enism 
Find more wrongly spelled words of Hellenism to spell it well.