To sleep longer than intended, usually missing a scheduled time to wake up or a planned activity.
From Old English 'ofer' (over/beyond) + 'slēp' (sleep). The compound word combines two basic elements to suggest sleeping past the normal or intended point.
Everyone has overslept, but it became a universally relatable word mostly in the modern era when alarm clocks and strict schedules made it a common problem to name!
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