The common Celandine, Chelidonium majus: so called because supposed to cure tetters.

1

a. 1400–50.  Stockh. Med. MS., 175. Celydonye or teterwort, celidonie.

2

1578.  Lyte, Dodoens, I. xx. 31. Called … in English Celandyne, Swallowurte, and of some Tetterwurte.

3

1640.  Parkinson, Theatr. Bot., V. lxx. 618. Tetterwort … the juice often applyed to tetters … will quickly kill their sharpenesse.

4

1879.  Prior, Pop. Names Plants (ed. 3), 235. Tetter-wort, from its curing tetters.

5

  b.  In America, The Blood-root, or Red PUCCOON, Sanguinaria canadensis.

6

1891.  in Cent. Dict.

7