Eikturnir ("with oak tips of horns") - in Scandinavian mythology - a magic deer.
According to Elder Edda , the ecturner stands on the roof of Valhalla and eats the leaves of a world tree - Yggdrasil ash. The water that drips from its horns gives a source to all rivers.
Ecturner deer,
on Valhalla standing
eats Lerad foliage;
in Hvergelmir falls
moisture from the horns -
all rivers are the sources.
- - Elder Edda , Grimnir Speech