Mildnes or Mildness: How To spell?
The word Mildnes is misspelled against Mildness, a noun meaning "The quality or state of being mild; as, mildness of temper; the mildness of the winter."
Mildness 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:  mildne-s  Correct Spelling:  mildne-ss 
Find more wrongly spelled words of Mildness to spell it well.