borrowed from German, from Affe
"monkey" (going back to Middle High German affe,
going back to Old High German affo
) + Pinscher,
any of various small to medium dog breeds with docked tails and cropped ears (perhaps borrowed from English Pincher,
given name for dogs in the early 19th century); from its monkeyish face — more at 1ape
Pinscher is attested as a breed name in Germany as early as 1812 (Berlinische Nachrichten von Staats- und gelehrten Sachen, No. 107, 5. Sept. 1812), though the physical characteristics of the dog at that period are not known. Affenpinscher is known in German from 1852.