Stamering or Stammering: How To spell?
The word Stamering is misspelled against Stammering, a noun meaning "A disturbance in the formation of sounds. It is due essentially to long-continued spasmodic contraction of the diaphragm, by which expiration is preented, and hence it may be considered as a spasmodic inspiration."
Stammering has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings sta & ering which should not be misspelled with single 'M'
Wrong Spelling:  sta-m-ering  Correct Spelling:  sta-mm-ering 
Find more wrongly spelled words of Stammering to spell it well.