When did the word dog start being used

In europe, the middle east, and north america, walls, tombs, and scrolls bore depictions of dogs hunting game.The word is a derivative of the latin adjective caninus, based on canis, meaning dog. however, it was first applied in middle english (circa 1400) as a noun and adjective in reference to one of the four pointed teeth situated on each jaw in mammals (the canine teeth)—the upper canines in the human jaw are called eyeteeth, the lower are.Other early middle english uses tend to be depreciatory or abusive.its origin remains one of the great mysteries of english etymology.The dog is one of the two most ubiquitous and most popular domestic animals in the world (the cat is the other).This word was used to refer to a powerful breed of canine, and it is believed that its root is the word dukkōn, meaning power, strength.The first uses of police dogs can be traced back to the english, who used bloodhounds' amazing sense of smell to search for jack the ripper.

We all know that the dog has the nose and guess what, the original word for the nose is hundë as in hound dog bre.(a) [16c+] (also dawg) an untrustworthy, treacherous, completely venal man.When did police dogs start being used?To bother or pester persistently.For more than 12,000 years it has lived with humans as a hunting companion, protector, object of scorn or adoration, and friend.