Nonplused or Nonplussed: How To spell?

The word Nonplused is misspelled against Nonplussed, which is past tense of "Nonplus"

Nonplussed has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings nonplu & ed which should not be misspelled with single 'S'
Wrong Spelling: nonplu-s-ed
Correct Spelling: nonplu-ss-ed
Check more misspelled words of Nonplussed to spell it correct.