The proper name for this vessel is, in German, "Brautbecher", "Brautpaarbecher", also "Brautpokal", or betrothal beaker in English. To a lesser extent, some refer to it as a "Jungfraubecher". I must adamantly disagree with the latter, as "Jungfrau" means maiden, or unmarried woman. I agree with the term Brautpaarbecher, as this vessel is drunk from by the bride and groom simultaneously after being married - "Brautpaar" means married, or betrothed couple. The term "Wagercup" seems nonsensical to me, just like the term "beer stein", whose coining was the result of a misunderstanding.
"Jodhpur" is another pet peeve of mine, that people often get wrong. It's East Indian, not Islamic! Jodhpur is a region in India, where Prof. Franz Reuleaux, an acclaimed machine designer, made a trip to the region in the 1880's and found such designs on brass vessels (and which can be found on eBay, etc.), finding upon these designs which were engraved, then filled with colored enamel. Many cultures employed continuous, wrap around decorations (notably across Asia), that doesn't make them Islamic. Reuleaux brought these designs to Fritz Heckert, then to Josephinenhütte, who often shared designers. At the Heckert glassworks, other designers, most notably Prof. Max Rade and Martin Ehring built on those designs.
Rolf-Dieter