>But <Nietzsche> is from <Nikolaus>.
Perhaps I don't remember the correct etymology.
I think of two... suffixes used in German:
"-nitz" + "-(e/i)sch-". I don't have a "Deutsches
Namenslexikon" at hand. (Frequent German derivations
of Nikolaus are e.g. Klaus/Claus, Claas, Claassen,
Klose (this one in Eastern and Polish regions).)
BTW, there are Nitze and Nietze family names, too
(i.e. without "-sch(e)").
>Brian
George