Definition: The word "conch" appears to be an obscure term with no known origin or etymology. It seems to be a common reference word, particularly in Latin, Greek, and Jewish texts that are often used as a pebble, which can refer to many different things such as sea shells, rocks, stones, etc. The definition of "conch" as it is commonly used in Latin and Greek was given by the 4th century BC Greek historian Herodotus, who wrote about it. According to him, it is a pebble or a stone that is used as a marker to locate a particular location on a map. It is also used in Middle Eastern, Mediterranean, and Jewish literature for the purpose of reference. However, without further context or information about "conch" being an actual word or specific term, it seems unlikely that there has been a historical or etymological connection with it.