Fletness or Fleetness: How To spell?
The word Fletness is misspelled against Fleetness, a noun meaning "Swiftness; rapidity; velocity; celerity; speed; as, the fleetness of a horse or of time."
Fleetness has double "ee" is mispronounced as "e"Remember double 'EE' in between the strings Fl & tness which should not be misspelled with single 'E'
Wrong Spelling:  Fl-e-tness  Correct Spelling:  Fl-ee-tness 
Explore spell check of Fleetness to spell without errors.