Answer: penumbrae

AnswerCrossword Clue
PENUMBRAEShadowy places
penumbraeThe partially shaded outer region of the shadow cast by an opaque object
penumbraeThe shadow cast by the earth or moon over an area experiencing a partial eclipse
penumbraeAny area of partial shade
penumbraePENUMBRA, a partial shadow
penumbraeThe less dark outer part of a sunspot, surrounding the dark core