Domsman or Doomsman: How To spell?

The word Domsman is misspelled against Doomsman, a noun meaning "A judge; an umpire."

Doomsman has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings d & msman which should not be misspelled with single 'O'
Wrong Spelling:  d-o-msman 
Correct Spelling:  d-oo-msman 
Find more incorrect spellings of Doomsman to spell right way.

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