dowse

(noun) searching for underground water or minerals by using a dowsing rod. Synonyms: dowsing, rhabdomancy.

(verb) wet thoroughly. Synonyms: douse.

(verb) use a divining rod in search of underground water or metal.

(verb) slacken. Synonyms: douse. Example: "Douse a rope."

(verb) cover with liquid; pour liquid onto. Synonyms: drench, douse, soak, sop, souse. Example: "Souse water on his hot face."