While serving in Germany during the Cold War, I married into a German family. My Deutscher father-in-law was one of the few to escape the encirclement of the 6th Armee at Stalingrad, only to be captured later and sent to a Gulag in Siberia. He wasn't repatriated until 1951, earlier than some.
I used to ask him questions about the weaponry he used as a Panzer Grenadier in the Wehrmacht. When I used the word "Luger", he was baffled. Finally I showed him a picture and he said "Ach, P-'08! Prima pistole." In German, that is pronounced "Pay nuhl ocht", the German term for the gun.
"Luger" is a US term for the gun, with reference to Georg Luger who came up with the design based on the earlier Borchardt.
Stoeger made it famous peddling the Mauser Banner Lugers pre-WWII and the name stuck.