Quidity or Quiddity: How To spell?
The word Quidity is misspelled against Quiddity, a noun meaning "A trifling nicety; a cavil; a quibble."
Quiddity has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Qui & ity which should not be misspelled with single 'D'
Wrong Spelling:  Qui-d-ity  Correct Spelling:  Qui-dd-ity 
Check more misspelled words of Quiddity to spell it correct.