The one that gets to me is that the anglosphere is still calling a fairly common crop [cooking product] “rapeseed [oil]”.
And why is that etymologically connected to the latin for ‘turnip’? This seems as strange now as the fact “mincemeat” (no space) in mince pies is vegetarian (the answer: because “meat” used to mean any food not just animal flesh, but it’s still strange to see that today).