Pselism or Psellism: How To spell?

The word Pselism is misspelled against Psellism, a noun meaning "Indistinct pronunciation; stammering."

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