[f. SWALLOW sb.1 + WORT; in sense 1 rendering early mod.G. schwalbenwurtz (cf. obs. Du. swaelemwortel) = med.L. hirundaria; in sense 2 rendering Du. zwaluwkruid = mod.L. chelīdonium, Gr. χελῑδόνιον (see CELANDINE).]
1. The herb Vincetoxicum officinale, formerly called Asclepias (or Cynanchum) Vincetoxicum; from the form of the pods, suggesting a swallow with outspread wings. Hence extended to the genus Asclepias generally.
1548. Turner, Names Herbes, 17. Asclepias may be called in englishe Swallowurt.
1651. French, Distill., ii. 52. Take Swallow-wort.
1785. Martyn, Lett. Bot., xvi. (1794), 216. Common Swallow wort, or Tame poison.
1822. Good, Study Med., III. 405. One or two species of asclepias or swallow-wort.
b. An umbelliferous plant, Elæoselinum (or Thapsia) Asclepium.
1866. Treas. Bot.
2. The Greater Celandine, Chelidonium majus.
1578. Lyte, Dodoens, I. xx. 31. The great Celandyne is called in English Celandyne, Swallowurte, and of some Tetterwurte.
1635. Swan, Spec. Mundi (1670), 220. Celandine or Swallow-wort.
1858. A. Irvine, Handbk. Brit. Plants, Index.