In Greek mythology, Lethe was the name of one of the five rivers in Hades, the underworld. Lethe was also the name of the Greek spirit of forgetfulness and oblivion, with whom the river was often identified.
In Greek mythology, Lethe was the underworld river of oblivion – one of the five rivers of Hades – and its goddess
'Lethe' (1857), poem by Charles Baudelaire (original French title: 'Le Léthé')
'Love and Lethe' (1934), short story by SamuelBeckett