Where does “Alcàntara” come from?

Alcàntara (Catalan) comes from Arabic قنطرة, from Ancient Greek κέντρον, from Proto-Hellenic *kéntron, from Proto-Indo-European *ḱéntrom — pointed tool.

Ancestry of “Alcàntara”, step by step

StepLanguageWordMeaning
1Arabicقنطرةarch, vault; bridge
2Ancient GreekκέντρονSomething with a sharp point: point, spike, spur;...
3Proto-Hellenic*kéntron—
4Proto-Indo-European*ḱéntrompointed tool
Every word from Proto-Indo-European *ḱéntrom →Every word from Proto-Hellenic *kéntron →Every word from Ancient Greek κέντρον →