Stepness or Steepness: How To spell?
The word Stepness is misspelled against Steepness, a noun meaning "Height; loftiness."
Steepness has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings St & pness which should not be misspelled with single 'E'
Wrong Spelling:  St-e-pness  Correct Spelling:  St-ee-pness 
Explore spell check of Steepness to spell without errors.