umbra

/ˈʌmbrə/
noun
  1. The darkest part of a shadow, where the light source is completely blocked.
    • The photographer waited until the building's umbra covered the bench for the perfect shot.
    • During a total solar eclipse, the moon's umbra falls on a small area of Earth.
    • In the umbra of the tree, the grass was much cooler than in the surrounding sunlight.
  2. A shadow or a dark area, especially one that follows or surrounds something.
    • The old castle cast a long umbra across the valley at sunset.
    • As the clouds passed, the umbra of the mountain moved slowly over the village.
    • The detective felt like he was living in the umbra of his past mistakes.
Synonyms
What does "umbra" mean? | whatsthatwordmean | whatsthatwordmean