Slavey or just Slave is a translation of Awokanak,[2] the name given to Dene by the Cree “who sometimes raided and enslaved their less aggressive northern neighbors”.[3][4][5] The names of the Slave River, Lesser Slave River, Great Slave Lake, and Lesser Slave Lake all derive from this Cree nam

The name Slavey is seldom used by the people themselves, who call themselves Dene. Indigenous ethnonyms for South Slavey people and language are Dehcho, Deh Cho Dene (“Mackenzie River People”) or Dene Tha.[6]

Not really any better