the.com/gun dog

means A dog trained to help hunters by locating, flushing, or retrieving game — pointing it out, startling it into the open, or fetching it once shot.

from Straightforward compound English: 'gun' plus 'dog,' naming the dog by the tool it works alongside rather than any ancient root. The term tracks the rise of shotgun hunting in the 1700s–1800s, when breeds like pointers, setters, and retrievers were deliberately refined for specific jobs in the field — pointing out birds, flushing them, or swimming out to bring back the fallen. The word itself is plain; the breeding behind it was anything but.