Where does “Centraleuropa” come from?

Centraleuropa (Swedish) comes from Swedish central, from Latin centrālis, from Latin centrum, from Ancient Greek κέντρον, from Proto-Hellenic *kéntron, from Proto-Indo-European *ḱéntrom — pointed tool.

Ancestry of “Centraleuropa”, step by step

Centraleuropa traces back through two separate lines of ancestry.

via Swedish central

Step	Language	Word	Meaning
1	Swedish	central	central, centralized, situated at the centre;...
2	Latin	centrālis	central, in the middle
3	Latin	centrum	center
4	Ancient Greek	κέντρον	Something with a sharp point: point, spike, spur;...
5	Proto-Hellenic	*kéntron	—
6	Proto-Indo-European	*ḱéntrom	pointed tool

via Swedish Europa

Step	Language	Word	Meaning
1	Swedish	Europa	—
2	Ancient Greek	Εὐρώπα	—

Every word from Proto-Indo-European *ḱéntrom →Every word from Proto-Hellenic *kéntron →Every word from Ancient Greek κέντρον →