Stumed or Stummed: How To spell?
The word Stumed is misspelled against Stummed, which is past tense of "Stum"
Stummed has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings stu & ed which should not be misspelled with single 'M'
Wrong Spelling:  stu-m-ed  Correct Spelling:  stu-mm-ed 
Check more misspelled words of Stummed to spell it correct.