Where does “centre” come from?

centre (Middle French) comes from Latin centrum, from Ancient Greek κέντρον, from Proto-Hellenic *kéntron, from Proto-Indo-European *ḱéntrom.

Ancestry of “centre”, step by step

Step	Language	Word	Meaning
1	Latin	centrum	center ; centre
2	Ancient Greek	κέντρον	Something with a sharp point: point, spike, spur;...
3	Proto-Hellenic	*kéntron	—
4	Proto-Indo-European	*ḱéntrom	—

centre — Etymology, Origin & Word History | Etymology Explorer