Donism or Donnism: How To spell?

The word Donism is misspelled against Donnism, a noun meaning "Self-importance; loftiness of carriage."

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