Old Khoi name for 'Rooilyf', a railway siding 17 km North of Groblershoop, on the way to Sishen. The name means 'red body'. Definition:
Track or set of tracks which do not belong to the railway enterprise but are linked up with the track of a railway enterprise so that an industrial, commercial or port, etc. establishment or group of establishments can be served by rail without trans-shipment. (Karoshoek Solar Farm is nearby!)
References
South African Place Names by Peter E. Raper
https://stats.oecd.org/glossary/detail.asp?ID=3920
Further Reading
https://m.engineeringnews.co.za/article/100-mw-karoshoek-solar-one-csp-project-commissioned-in-northern-cape-2018-12-03/rep_id:4433