wonga

Borrowed from Angloromani [Term?], from Romani angar (“coal”), from Sanskrit अङ्गार (áṅgāra, “charcoal, coal”), from Proto-Indo-Iranian *Hángāras, from Proto-Indo-European *h₁óngʷl̥. The English term coal was itself used as a slang term for money in England in the 18th and 19th centuries.