Grenback or Greenback: How To spell?

The word Grenback is misspelled against Greenback, a noun meaning "One of the legal tender notes of the United States; -- first issued in 1862, and having the devices on the back printed with green ink, to prevent alterations and counterfeits."

--> Greenback has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Gr & nback which should not be misspelled with single 'E'
Wrong Spelling:  Gr-e-nback 
Correct Spelling:  Gr-ee-nback 
Explore spell check of Greenback to spell without errors.

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