Disimulation or Dissimulation: How To spell?
The word Disimulation is misspelled against Dissimulation, a noun meaning "The act of dissembling; a hiding under a false appearance; concealment by feigning; false pretension; hypocrisy."
Dissimulation has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings di & imulation which should not be misspelled with single 'S'
Wrong Spelling:  di-s-imulation  Correct Spelling:  di-ss-imulation 
Check more misspelled words of Dissimulation to spell it correct.