Deftnes or Deftness: How To spell?

The word Deftnes is misspelled against Deftness, a noun meaning "The quality of being deft."

Deftness has double 'ss' in the end mispronounced as 's'
Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  deftne-s 
Correct Spelling:  deftne-ss 
Explore spell check of Deftness to spell without errors.

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