We detached this subthread from https://news.ycombinator.com/item?id=13042260 and marked it off-topic.

Likely carried from another language, e.g., https://de.wikipedia.org/wiki/Simbabwe

Similarly Ruanda/Rwanda

granted :) my mistake, overlooked that possibility

No, it's quite alright – I should be writing in English. I do manage to, in general. But these "almost, but not quite, entirely unlike my native language"-words sometimes trip me up.