Coter or Cotter: How To spell?
The word Coter is misspelled against Cotter, a noun meaning "A piece of wood or metal, commonly wedge-shaped, used for fastening together parts of a machine or structure. It is driven into an opening through one or all of the parts. [See Illust.] In the United States a cotter is commonly called a key."
Cotter has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings co & er which should not be misspelled with single 'T'
Wrong Spelling:  co-t-er  Correct Spelling:  co-tt-er 
Find more incorrect spellings of Cotter to spell right way.