Herr
Herr is a German honorific used before the surname of a man and is equivalent to Mr. in English. It signals formality and respect and is common in business, academia, and formal correspondence. It can be combined with professional titles, as in Herr Doktor or Herr Professor. The feminine form is Frau, and the plural form for men is Herren.
The term derives from Old High German herro and der Herr, meaning lord, master, or gentleman. Historically
Declension and forms: Herr is declined as a masculine noun: Nominative der Herr, Accusative den Herrn, Dative
Usage notes: The use of Herr is restricted to men and is appropriate in many settings but