penombra znamená v Angličtina

penumbra [penumbras]▼(partially shaded area around a shadow, especially an eclipse)
noun
[UK: pɪ.ˈnʌm.brə] [US: pə.ˈnəm.brə]

twilight [twilights]▼(faint light; dubious medium)
noun
[UK: ˈtwaɪ.laɪt] [US: ˈtwaɪ.ˌlaɪt]