Synonyms for Dowse (same or very similar meaning)
WordNet sense 1 (searching for underground water or minerals by using a dowsing rod):
dowsing, rhabdomancyWordNet sense 2 (wet thoroughly):
douseWordNet sense 3 (cover with liquid; pour liquid onto):
drench, soak, sop, souseFrom the ODE community, based on WordNetadd/edit