A pest

Origin

The word 'pest' traces its roots back to the Latin 'pestis,' a term that conjured images of devastation and death, referring to plagues and epidemic diseases. For centuries, it described literal destroyers—the blight on crops, the rats infesting homes, the diseases ravaging communities. But as language evolved, the severity of 'pestis' softened slightly. It began to encompass any creature or thing that was simply troublesome or annoying, rather than deadly. It wasn't long before this descriptor was unleashed upon humans, too. By the 18th century, a person who was persistently irksome, a constant source of minor irritation, could be branded 'a pest,' carrying the echoes of its ancient, more dangerous past, but now applied to the human tendency for bothersome behavior.