Masing or Massing: How To spell?

The word Masing is misspelled against Massing, which is present continuous of "Mass"

Massing has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings ma & ing which should not be misspelled with single 'S'
Wrong Spelling: ma-s-ing
Correct Spelling: ma-ss-ing
Find more wrongly spelled words of Massing to spell it well.