Mezotintoed or Mezzotintoed: How To spell?

The word Mezotintoed is misspelled against Mezzotintoed, which is past tense of "Mezzotinto"

--> Mezzotintoed has double "zz" is mispronounced as "z"
Remember double 'ZZ' in between the strings me & otintoed which should not be misspelled with single 'Z'
Wrong Spelling:  me-z-otintoed 
Correct Spelling:  me-zz-otintoed 
Find more incorrect spellings of Mezzotintoed to spell right way.

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