wonga

Wonga began in Australia as a bird name. In Dharug around Sydney, forms like wonga referred to the wonga pigeon, a large ground-feeding pigeon of eastern forests, and colonists adopted the word in the early nineteenth century. Naturalists liked Indigenous bird names when the birds themselves refused European naming habits.

Then English performed one of its stranger tricks. In Britain, especially by the late twentieth century, wonga turned into slang for money, probably by playful sound and criminal cant rather than direct semantic inheritance. The result is one of those accidents that etymology refuses to neaten.

The Australian word and the British slang form intersect in spelling and diverge in life. That is not rare in English, but it is often misunderstood. People assume continuity where there is only collision.

Today wonga still names the pigeon in Australian usage while British English hears cash. The older Aboriginal word remains rooted in country and species, even when modern ears chase another meaning. Sound travels faster than history.