Operation Zahnarzt (literally "Dentist") was a plan by the Germans to eliminate the Third Army during World War II. The plan of Operation Zahnarzt was to immediately come after Operation Nordwind. The plan was to initiate a pincer movement to encircle and destroy the 3rd US Army.
Zahnarzt is German for Dentist.
Just because the German's came up with the plan doesn't mean they used a German word as the name. The ai made this assumption.