Masy or Massy: How To spell?
The word Masy is misspelled against Massy, a comparative word meaning "Compacted into, or consisting of, a mass; having bulk and weight ot substance; ponderous; bulky and heavy; weight; heavy; as, a massy shield; a massy rock."
Massy has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings ma & y which should not be misspelled with single 'S'
Wrong Spelling:  ma-s-y  Correct Spelling:  ma-ss-y 
Browse incorrect spellings of Massy to spell it good.