I was co-teaching a speaking lesson with Rueben, one of Trolleng's South African teachers, and at one point we started discussing the currencies of Poland and South Africa.
I asked one of the students to talk about the meaning of the Polish currency the 'zloty', with the 'grosz' being its smallest unit: 100 groszy make up 1 zloty.
That's basically the same as 100 cents making up a dollar or 100 cents making up a rand. The meaning of groszy is derived from 'pea', the legume staple food, while the word 'złoty' is a derivation of the word 'gold', which is 'złoto' in Polish.
I then turned to Ruben and asked him to talk about the origins of the South African currency, the rand and its 100 cents. The name Rand comes from the group of hills and ridges that surround Johannesburg, from which the gold rich Witwatersrand reef was discovered and mined.
These hills are known as the Rand. So, you have the East Rand and the West Rand and collectively we have the Witwatersrand Supergroup.