(idiomatic) To seriously regret one's actions.

Galega officinalis, a herbaceous plant in the Faboideae subfamily.

(archaic) A bad bargain. / (archaic) A forfeit paid for withdrawing from a bargain.

Thalictrum thalictroides, native to woodlands in eastern North America.

plural of rue anemone

plural of rue-bargain

Ruta graveolens

Peganum harmala (harmal)

The plant Peganum harmala. / Used other than figuratively or idiomatically: see wild, rue.

plural of wild Syrian rue