Sermoner or Sermoneer: How To spell?
The word Sermoner is misspelled against Sermoneer, a noun meaning "A sermonizer."
Sermoneer has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Sermon & r which should not be misspelled with single 'E'
Wrong Spelling:  Sermon-e-r  Correct Spelling:  Sermon-ee-r 
Find more incorrect spellings of Sermoneer to spell right way.