The root of the name Herman is derived from the name Arminius (Latin). There is a largely unknown huge statue that was built near the site of the battle. A must see if you visit Germany.
Do you know how the German pronunciation has shifted over 2,000 years? Herman = Erman (if the H is silent), and the “ius” is just a Latin masculine ending, presumably added when Herman, as a young man, was a hostage/cadet/honored guest being brought up in Rome as a means of ensuring his father’s good behavior. What I don’t know is how the “E” sound in “Erman” becomes the “A” sound in “Armenius.” How did the Germans pronounce “Herman” 2000 years ago? Those vowel shifts are tricky things.
I used to work with a German fellow with the name of Antonius. He told me that it was the latin version of Anthony.
The statue was built nowhere near to the site of the battle, and the historical Arminius fled when the Romans returned and beat his ass and those of his followers. Rome's reach was long, and eventually his own relatives, with whom he'd taken refuge, killed him. The exaggeration of the impact of Teutoberg goes on.