Dastardlines or Dastardliness: How To spell?
The word Dastardlines is misspelled against Dastardliness, a noun meaning "The quality of being dastardly; cowardice; base fear."
Dastardliness 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:  dastardline-s  Correct Spelling:  dastardline-ss 
Find more wrongly spelled words of Dastardliness to spell it well.