SlaveyPronunciation: /ˈsleɪvi/Definition of Slavey noun (plural same or Slaveys) 1a member of a Dene people of NW Canada. 2 [mass noun] either of the two languages ( North and South Slavey) spoken by the Slavey. adjective relating to the Slavey or their languages. Origin:translating Cree awahkān 'captive, slave'