Guma or Gumma: How To spell?
The word Guma is misspelled against Gumma, a noun meaning "A kind of soft tumor, usually of syphilitic origin."
Gumma has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings gu & a which should not be misspelled with single 'M'
Wrong Spelling:  gu-m-a  Correct Spelling:  gu-mm-a 
Check more misspelled words of Gumma to spell it correct.