Sinewines or Sinewiness: How To spell?
The word Sinewines is misspelled against Sinewiness, a noun meaning "Quality of being sinewy."
Sinewiness 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:  sinewine-s  Correct Spelling:  sinewine-ss 
Find more wrongly spelled words of Sinewiness to spell it well.