Hoo, Ky, Quaco : Yes (Nind 1831: 48)
Kaia, kai, ot, hoo : Yes (Oui) (Dumont D’Urville 1834: 4)
ee-ee : yes, a sign of assent (Grey 1839)
Kwa; Ky; Koa; Kya. : Yes (Moore 1842: 171)
Qua : Yes (Symmons 1842: 12)
Gwa : yes. (Brady 1845: 23)
caia; caiatigi : yes (Salvado 1851: 257)
kia : Yea (Barlee Curr 1886: 355)
gwa : Yes (Armstrong (Curr) 1886: 335)
kiar : Yes (Gifford (Curr) 1886: 363)
kiar : Yes (Goldsworthy (Curr) 1886: 385)
kiya : Yes (Graham (Curr) 1886: 351)
kia : Yes (Hackett (Curr) 1886: 345)
kia : Yes (Hester (Curr) 1886: 361)
kia : Yes (Hossell, Knight & Spencer (Curr) 1886: 389)
kire : Yes (Knight (Curr) 1886: 333)
kia : Yes (Monger (Curr) 1886: 323)
kya : Yes (Scott (Curr) 1886: 347)
koo : Yes (Small (Curr) 1886: 359)
yar : yes (Taylor (Curr) 1886)
kia, qua : Yes (Whitfield (Curr) 1886: 327)
Ko’ go’ : Certainly (Baaburgurt (Bulyen/George Eliot); Bates XII 2B, 13: 21)
Kaia : Yes (Balbuk; Bates XII 2B, 15: 41)
Kaia : Certainly (Monnop, Ballarruk; Bates XII 2B, 24: 16)
kaia : yes (Ngalbaitch; Bates XII 2B, 7a)
Kaia : Yes (Ngilgee; Bates XII 2B, 12a: 41)
Kea, kaia : Certainly (Joobaitch aka Ngoorweel; Bates XII 2B, 14: 22)
Kaia : Certainly (Kajaman; Bates XII 2B, 11: 21)
kaia : yes (Rae 1913: 2)
kyer : yes (Bussell 1930: 56)
kayaṛ : yes (affirmative) (Douglas 1968: 101)
Kia : yes (Davis 1969: 6)
qaayaar֘ : yes, certainly (Von Brandenstein 1988: 69)
kaiya : yes (Douglas 1991: 34)
kaya : yes (Whitehurst 1992: 53)
kaya, kay, kwa : Yes! (Dench 1994: 191)
Gwa : Yes (Richards 1994: 128)
Kaya : yes (Mippy (Rooney) 2002: 325)