Nonnecesity or Nonnecessity: How To spell?
The word Nonnecesity is misspelled against Nonnecessity, a noun meaning "Absence of necessity; the quality or state of being unnecessary."
Nonnecessity has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings nonnece & ity which should not be misspelled with single 'S'
Wrong Spelling:  nonnece-s-ity  Correct Spelling:  nonnece-ss-ity 
Find more incorrect spellings of Nonnecessity to spell right way.