Helenist or Hellenist: How To spell?
The word Helenist is misspelled against Hellenist, a noun meaning "One skilled in the Greek language and literature; as, the critical Hellenist."
Hellenist has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings he & enist which should not be misspelled with single 'L'
Wrong Spelling:  he-l-enist  Correct Spelling:  he-ll-enist 
Find more wrongly spelled words of Hellenist to spell it well.