The word 'starlight' is a transparent compound formed from two native English elements. 'Star' originates from the Proto-Germanic 'sternôn', which is itself derived from the Proto-Indo-European root 'h₂stḗr', a term for star shared across many ancient languages. 'Light' comes from the Proto-Germanic 'leuhtą', tracing back to the PIE root 'lewk-', meaning 'light' or 'brightness'. The compound logically and literally describes the specific type of light that emanates from distant stars, a concept that has been named in English using its core Germanic vocabulary since the Old English period, reflecting a direct and enduring observation of the natural world.

Structure: star (star) + light (light) - star: From Old English 'steorra', meaning a celestial body visible as a point of light. In this compound, it functions as a noun attributing the source of the light. - light: From Old English 'lēoht', meaning brightness or illumination. In this compound, it functions as the head noun, denoting the phenomenon itself.