"Reboot" refers to the process of restarting a computer or a device, or metaphorically, it can mean to start something again in a fresh or new way. In technology, when you reboot a system, it clears temporary files and resets the state of the hardware and software, which can help solve issues or improve performance. In broader contexts, rebooting can refer to giving something a new beginning or revitalizing an idea, project, or approach.
The word "reboot" originated in the late 1980s from the combination of the prefix "re-", meaning "again", and the word "boot", which is derived from "bootstrap", referring to the process of loading an operating system into a computer's memory. This concept relates to the way a computer "pulls itself up by its bootstraps" to start functioning from a powered-off state.