Interestingly, despite shifts in power, due to say, invasion, toponyms tend to be conserved, surviving repeated language shifts.
有趣的是,尽管由于入侵等原因发生了权力转移,但地名往往被保留下来,在反复的语言变化中幸存下来。
英语百科
Language shift
Language shift, sometimes referred to as language transfer or language replacement or assimilation, is the process whereby a speech community of a language shifts to speaking another language. Often, languages perceived to be "higher status" stabilise or spread at the expense of other languages perceived by their own speakers to be "lower-status".