Definition of go under

The phrase "go under" has origins in the maritime industry, where it originally referred to a ship that sinks or becomes submerged. This usage can be dated back to the early 19th century, where it was commonly heard in naval circles. As the phrase became more widely used in everyday speech, its meaning expanded to cover any situation in which something comes to an end or fails. Today, "go under" is often applied to businesses that declare bankruptcy or close their doors, as well as to people who succumb to an illness or injury. The origin of the phrase "go under" is somewhat unclear, but it likely derives from the fact that a submerged ship disappears beneath the surface of the water, effectively going under. The use of the word "under" also reflects the idea of something being concealed or hidden, which echoes the idea of a submerged vessel being hard to see or locate. Despite its nautical origins, "go under" has become a versatile and common phrase in many different contexts, from finance and economics to sports and popular culture. Its etymology serves as a reminder of the rich history and heritage of maritime traditions, as well as the ongoing relevance of naval language and imagery in our everyday vocabulary.