A perennial suffrutescent plant (Ruta graveolens), having a strong, heavy odor and a bitter taste; herb of grace. It is used in medicine.
- To feel regret, remorse, or sorrow for.
- To feel regret, remorse, or sorrow.
- Sorrow; regret: "To their rue, the Social Democrats have to acknowledge that the Conservative-Liberal coalition has captured the center where elections are won” ( Elizabeth Pond).
- Any of various aromatic southwest Asian or Mediterranean plants of the genus Ruta, especially the ornamental R. graveolens, having bipinnately compound leaves that yield an acrid volatile oil formerly used in medicine.