ancient lights
plural noun
treated as sing.
- English Law the right of access to light of a property, established by custom and used to prevent the construction of buildings on adjacent property which would obstruct such access【英格兰律】老窗户采光权。
词源
mid 18th cent.: from lights meaning 'light from the sky'. In England the sign 'Ancient Lights' was often placed on a house， adjacent to a site where a high building might be erected.