[kqr]

This is something I love about Finnish as an outsider: instead of loaning words they create beautifully poetic compounds. I have lost my list but remember comet being "tail-star", capital being "head-city", and world being "ground-air".

[jltsiren]

"Head city" is just the literal meaning of "capital city".

"Maailma", on the other hand, is an old word, and its original meaning was more like "earth and sky". "Ilma" used to mean things like sky, heaven, air, and weather, but Finnic languages eventually started using the Indo-European loan "taivas" for the first two.

[yencabulator]

That can go wrong too. They (the guardians of language, prim and proper) tried to make "swap file" be "heittovaihtotiedosto", literally "thrown replacement record collection". Thrown as in the things being swapped are in the air while being exchanged, not placed somewhere temporarily. In the real world, lots of computer-related terminology ended up being just transliterated from English directly, along the lines of procedure -> proseduuri, server -> serveri, icon -> ikoni.