'daylight' originates from Old English, specifically the words 'dæg' meaning 'day' and 'leoht' meaning 'light'.

'dæg' and 'leoht' combined in Old English to form 'dæġlēoht', which eventually became the modern English word 'daylight'.

Initially, it meant 'the light of day', and this meaning has largely remained the same in modern usage.