The spelling of the word "Hintzen" can be a bit confusing as it contains two silent letters. The correct pronunciation is /ˈhɪntsən/. The "h" at the beginning of the word is pronounced, but the "t" and "z" are not. The "t" is often mistaken for a sound, but it is only there to indicate that the "i" and "n" are pronounced separately. As for the "z", it is simply a remnant of the Dutch spelling of the name.
The word Hintzen is a German surname, and its etymology relates to its use as a patronymic last name. The name is derived from the Germanic personal name Hinzo or Hentsi, which was an affectionate form of the name Heinrich or Henry in English. The suffix -en suggests the formation of a patronymic surname, indicating son of Hinzo or son of Hentsi. Therefore, Hintzen essentially means son of Hinzo or son of Hentsi.