tarragon (n.)

Artemisia Dracunculus, Eastern European plant of the wormwood genus, 1530s, from Medieval Latin tragonia, from Byzantine Greek tarchon, from Arabic tarkhon, from a non-Arabic source, perhaps Greek drakon "serpent, dragon" (via drakontion "dragonwort"); see dragon. From the same source come Spanish taragona, Italian targone, French estragon (with unetymological prefix). Its aromatic leaves long have been used for flavoring (especially vinegar).