Noice! "Old Scratch, also known as Mr. Scratch, is a nickname or pseudonym for the Devil. The name likely comes from Middle English “scrat,” the name of a demon or goblin, derived from Old Norse “skratte.” The term “Old Scratch” has been used in literature and popular culture to refer to the Devil since the 17th century." source Interestingly, there's absolutely no videos about the origin of the term "Old Scratch" on YouTube initial search. Leads me to believe that indeed the greatest trick the Devil ever pulled was convincing the world he didn't exist, probably on the board of Alphabet.

Noice! "Old Scratch, also known as Mr. Scratch, is a nickname or pseudonym for the Devil. The name likely comes from Middle English “scrat,” the name of a demon or goblin, derived from Old Norse “skratte.” The term “Old Scratch” has been used in literature and popular culture to refer to the Devil since the 17th century." source Interestingly, there's absolutely no videos about the origin of the term "Old Scratch" on YouTube initial search

Noice! "Old Scratch, also known as Mr. Scratch, is a nickname or pseudonym for the Devil. The name likely comes from Middle English “scrat,” the name of a demon or goblin, derived from Old Norse “skratte.” The term “Old Scratch” has been used in literature and popular culture to refer to the Devil since the 17th century." source