Overthwartnes or Overthwartness: How To spell?
The word Overthwartnes is misspelled against Overthwartness, a noun meaning "The state of being overthwart; perverseness."
Overthwartness 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:  overthwartne-s  Correct Spelling:  overthwartne-ss 
Explore spell check of Overthwartness to spell without errors.