Necessitation or Necessitattion: How To spell?
The word Necessitation is misspelled against Necessitattion, a noun meaning "The act of making necessary, or the state of being made necessary; compulsion."
Necessitattion has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings necessita & ion which should not be misspelled with single 'T'
Wrong Spelling:  necessita-t-ion  Correct Spelling:  necessita-tt-ion 
Find more incorrect spellings of Necessitattion to spell right way.