 "AIATSIS" and "Glottolog" both treat Wagaydy as an isolate and Giyug as unclassifiable.In contemporary usage, "Northern Daly" (e.g.Harvey 2003, Cahir 2006, Nordlinger 2017) most often refers specifically to the group of languages which includes Malakmalak and Tyerraty (also known as Guwema), a variety with which MalakMalak differs significantly in vocabulary (65% according to Tryon's 200 word list), but is very close to morphologically.