Specimens of Bushman Folklore: The Song Of The Springbok Mothers.
Specimens of Bushman Folklore, by W.H.I. Bleek and L.C. Lloyd, [1911]
The Springbok mothers sang (soothing their children)--
"A-a' hng
O Springbok Child!
sleep for me.
A-a' hng
O Springbok Child!
Sleep for me."