The word "pod" refers to a shell or a case that contains seeds, usually found in plants such as peas or beans. It can also refer to a group of marine animals, like dolphins or whales, that travel together. In a more modern context, "pod" is often used to refer to a small, specialized space or unit, such as a podcast (an audio program) or a sleeping pod (a small space to sleep).
The word "pod" comes from the Middle English word "pode," which is derived from the Old English "podd," meaning a bag or a pouch. It is related to the Latin word "podia," meaning foot or base.