The word "prompt" can be used as both a noun and a verb. As a noun, it refers to a cue or reminder that encourages someone to take action or respond. As a verb, it means to cause someone to take action or to urge someone to do something. Additionally, it can be used as an adjective to describe something that is done quickly or without delay.
The word "prompt" comes from the Latin word "promptus," which means "brought forth" or "ready." This Latin term is derived from the verb "promere," meaning "to bring forth" or "to take."