where does the term dead end come from
Dead end (street) The expression cul-de-sac comes from French, where it originally meant "bottom of the sack".[44] It was first used in English in anatomy (since 1738). It was used for dead-end streets since 1800 in English (since the 14th century in French).[45] The often heard erroneous folk etymology "arse/ass [buttocks] of the sack" is based on the modern meaning of cul in French, Catalan, and Occitan, but cul doesn't have that meaning in cul-de-sac, which is still used to refer to dead ends in modern French although the terms impasse and voie sans issue are more common in modern French.
Greek underworld In mythology, the Greek underworld is an otherworld where souls go after death. The original Greek idea of afterlife is that, at the moment of death, the soul is separated from the corpse, taking on the shape of the former person, and is transported to the entrance of the Underworld.[1] The Underworld itself—sometimes known as the realm of Hades—is described as being either at the outer bounds of the ocean or beneath the depths or ends of the earth.[2] It is considered the dark counterpart to the brightness of Mount Olympus with the kingdom of the dead corresponding to the kingdom of the gods.[3] Hades is a realm invisible to the living, made solely for the dead.[4]