Novenial or Novennial: How To spell?

The word Novenial is misspelled against Novennial, an adjective meaning "Done or recurring every ninth year."

Novennial has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings nove & ial which should not be misspelled with single 'N'
Wrong Spelling: nove-n-ial
Correct Spelling: nove-nn-ial
Find more incorrect spellings of Novennial to spell right way.