Where does “citronel·la” come from?

citronel·la (Catalan) comes from French citronnelle, from French citron, from German zitrone, from Italian citrone, from Latin citron, from Ancient Greek κίτρον, from Latin citrum, from Latin cī̆trus — cedar; anything made of cedar-wood; cedar-oil.

citronel·la (Catalan): any of genus Cymbopogon of grasses, especially Cymbopogon nardus (citronella)

Definitions

any of genus Cymbopogon of grasses, especially Cymbopogon nardus (citronella)

Ancestry of “citronel·la”, step by step

Step	Language	Word	Meaning
1	French	citronnelle	lemongrass; citronella
2	French	citron	lemon; lime; brimstone
3	German	zitrone	lemon fruit
4	Italian	citrone	citron
5	Latin	citron	—
6	Ancient Greek	κίτρον	fruit of the citron tree
7	Latin	citrum	nominative neuter singular of citer; accusative...
8	Latin	cī̆trus	citron tree
9	Greek	κέδρος	cedar
10	Ancient Greek	κέδρος	cedar; anything made of cedar-wood; cedar-oil

Every word from Ancient Greek κέδρος →Every word from Greek κέδρος →Every word from Latin cī̆trus →