I guess the meaning of “Earth” would translate to the conceptual thought of “Home Planet”?

If that’s how their language works, then I feel like it must be near impossible to add new vocabulary without stringing multiple concepts together. I’m not sure how you could merge conceptual thoughts together like you can words/sounds. We’d end up on a planet named “Blue, Green, Dirt, Water, Bipedal, Planet” or whatever minimal combination ends up being unique.