Sunlight
来自Big Physics
wiktionary
From Middle English sonnelight, sunneliht, from Old English sunnan lēoht(“sunlight”) [1], equivalent to sun + light. Cognate with Dutch zonlicht(“sunlight”), German Low German Sünnenlücht(“sunlight”), German Sonnenlicht(“sunlight”).
etymonline
sunlight (n.)
c. 1200, from sun (n.) + light (n.). Compare Dutch zonlicht, German sonnenlicht.