Yeah, earth in Dutch is “aarde” and in German it’s “erde”, which both sound related to “earth”.

However, it originally must have meant soil/dirt/land, long before those humans were even aware of the concept of planets. So who was the first to call Earth after earth or Terre after terre? Probably the first persons to figure out that they were living on a planet is my guess, it makes sense to name something after the part that you can see imo.