water witch
noun
1.
Also,
water witcher
. a person skilled at water witching; dowser.
2.
a witch believed to haunt lakes, ponds, etc.
Origin
1810-20,
Americanism
water-witch
[
waw
-ter-wich,
wot
-er-]
/ˈwɔ tərˌwɪtʃ, ˈwɒt ər-/
verb (used without object)
1.
to practice water witching; work as a water witch.
British Dictionary definitions for
water witch
water witch
noun
1.
a person who claims the ability to detect water underground by means of a divining rod