Definition of "water-witch" in English

noun

1. A grebe:

   • […] I knew that another pair of Grebes had chosen this secluded pond for their home. Careful search revealed only a deserted or incompleted nest, and I continued until I came to a weedy stretch. Examining it with binoculars, before entering, as it was quite open, I espied another of these elusive water-witches upon its nest.

2. (UK, dialect) The storm petrel.

3. (chiefly fantasy) Used other than figuratively or idiomatically: a witch who lives in, controls, is able to dowse or find, or is otherwise connected with, water.