The word "do" is a verb that means to perform an action or to carry out a task. It can also refer to the process of making something happen or completing something. In everyday conversation, “do” is often used to indicate the fulfillment of a duty or obligation.
The word "do" comes from Middle English "don," which is derived from Old English "dōn," meaning "to put, place, set in order." Its roots can be traced back to Proto-Germanic "*dōną," which also means "to do."