Superaded or Superadded: How To spell?

The word Superaded is misspelled against Superadded, which is past tense of "Superadd"

Superadded has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Supera & ed which should not be misspelled with single 'D'
Wrong Spelling: Supera-d-ed
Correct Spelling: Supera-dd-ed
Check more misspelled words of Superadded to spell it correct.