Digresion or Digression: How To spell?
The word Digresion is misspelled against Digression, meaning "a message that departs from the main subject, wandering off"
Digression has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings digre & ion which should not be misspelled with single 'S'
Wrong Spelling:  digre-s-ion  Correct Spelling:  digre-ss-ion 
Find more incorrect spellings of Digression to spell right way.