Wilhelm
来自Big Physics
wiktionary
Borrowed from German Wilhelm. Doublet of William.
etymonline
Wilhelm
German form of William (q.v.). Fem. form is Wilhelmina. Wilhelmine (adj.) is "pertaining to the reign of Wilhelm II," emperor of Germany 1888-1918. Berlin's Wilhelmstrasse was the pre-1945 headquarters of the German foreign office, hence used metonymically for "German foreign policy" (compare Quai d'Orsay).
