repent
regret
rue
feel remorse for; feel sorry for; be contrite about
(French) a street or road in France
sorrow
ruefulness
sadness associated with some wrong done or some disappointment
he drank to drown his sorrows
he wrote a note expressing his regret
to his rue, the error cost him the game
leaves sometimes used for flavoring fruit or claret cup but should be used with great caution: can cause irritation like poison ivy
herb of grace
Ruta graveolens
European strong-scented perennial herb with grey-green bitter-tasting leaves; an irritant similar to poison ivy