Emily Dickinson Lexicon

SEDGE, n. [Sax. secg; perhaps from the root of L. seco, to cut; that is, sword grass, like L. gladiolus.]

1. A narrow flag, or growth of such flags; called in the North of England, seg or sag. Johnson. Barret.
2. In New England, a species of very coarse grass growing is swamps, and forming bogs or clumps.