nixy
/ˈnɪksi/
noun
- A water spirit or elf, often thought to live in rivers, lakes, or the sea.
- Some villagers believed a nixy guarded the hidden treasure at the bottom of the river.
- The old fisherman told stories of a nixy that lived in the deep part of the lake.
- In the fairy tale, a playful nixy helped the lost child find her way home.