Why is Hank a nickname for Henry?

Why is Hank a nickname for Henry? It eventually got truncated to just “Hank” in England. Separately, the Dutch brought “Henk” to the New World colonies in the 17th century; Henk being a diminutive of Hendrick (Dutch equivalent of Henry). This is how Hank developed as a short-form for Henry in the United States.

It eventually got truncated to just “Hank” in England. Separately, the Dutch brought “Henk” to the New World colonies in the 17th century; Henk being a diminutive of Hendrick (Dutch equivalent of Henry). This is how Hank developed as a short-form for Henry in the United States.