dowser

[ dou-zer ]

/ ˈdaʊ zər /

Also called dowsing rod

[dou-zing] /ˈdaʊ zɪŋ/. divining rod.

a person skilled in its use.

Origin of dowser

First recorded in 1830–40; dowse² + -er¹

downy woodpecker, downzone, dowry, dowsabel, dowse, dowser, dowsing rod, dowson, dowy, dox, doxastic

What then is the secret of the dowser's often remarkable success?

Occultism and Common-Sense |Beckles Willson
Is this due to any special faculty in the dowser, or has the twig itself anything to do with it?

Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 |Various
But directly that he came to the spots the dowser had found the twig showed vigorous signs of animation.

Occultism and Common-Sense |Beckles Willson
She'd evidently had the dowser go over the list of twenty-two dominated planets.

Talents, Incorporated |William Fitzgerald Jenkins

To-day, however, the common belief is that the name is derived from the magic power of the 'Dowser' or Water-Finder.

The Woodcraft Girls at Camp |Lillian Elizabeth Roy