Serenenes or Sereneness: How To spell?

The word Serenenes is misspelled against Sereneness, a noun meaning "Serenity."

Sereneness 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:  serenene-s 
Correct Spelling:  serenene-ss 
Explore spell check of Sereneness to spell without errors.

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