wolf dog

• wolfdog
• wolf-dog

English Wikipedia has an article on:

wolfdog

Wikipedia

wolf dog (plural wolf dogs)

1. A dog trained to hunt wolves.
   • 1819 December 20 (indicated as 1820), Walter Scott, chapter III, in Ivanhoe; a Romance. […], volume (please specify |volume=I to III), Edinburgh: […] Archibald Constable and Co.; London: Hurst, Robinson, and Co. […], →OCLC:

     One grisly old wolf-dog alone, with the liberty of an indulged favourite, had planted himself close by the chair of state, and occasionally ventured to solicit notice by putting his large hairy head upon his master’s knee, or pushing his nose into his hand.

   • 1916, Arthur Ransome, “The Hut in the Forest”, in Old Peter's Russian Tales‎^[1]:

     Bayan was a dog, a tall gray wolf-dog. He could jump over the table with a single bound.

   • 1922 February, James Joyce, “[Episode 2]”, in Ulysses, Paris: Shakespeare and Company, […], →OCLC:

     The wolfdog sprawls on his back, wriggling obscenely with begging paws, his long black tongue lolling out.

2. A hybrid between a wolf and a dog.
   • 1908, Jack London, “To Build a Fire”, in Lost Face‎^[2]:

     At the man’s heels trotted a dog, a big native husky, the proper wolf-dog, grey-coated and without any visible or temperamental difference from its brother, the wild wolf.

   • 1908, Zane Grey, chapter 9, in The Last of the Plainsmen‎^[3]:

     That night the starved wolf dogs gorged themselves till they could not rise from the snow.

• wolfhound