Meaning

noun an electrical device that provides a path for electrical current to flow

noun a journey or route all the way around a particular place or area

noun an established itinerary of venues or events that a particular group of people travel to

originFrom Middle English circuit, from Old French circuit, from Latin circuitus (“a going round”), from circuire (“go round”), from circum (“around”) + ire.

Etymology from Wiktionary, CC BY-SA 3.0