1. To wet through and through; soak.
2. To administer a large oral dose of liquid medicine to (an animal).
3. To provide with something in great abundance; surfeit: just drenched in money.

1. The act of wetting or becoming wet through and through.
2. Something that drenches: a drench of rain.
3. A large dose of liquid medicine, especially one administered to an animal by pouring down the throat.

Word History: Drink and drench mean quite different things today, but in fact they share similar origins, and, historically, similar meanings. Drink comes from a prehistoric Germanic verb *drinkan, from the Germanic root *drink- meaning "drink." Another form of this root, *drank-, could be combined with a suffix *-jan that was used to form causative verbs, in this case *drankjan, "to cause to drink." The descendant of the simple verb *drinkan in Old English was drincan (virtually unchanged), while the causative verb *drankjan was affected by certain sound shifts and became Old English drencan, pronounced (drěnchŏn), and, in Middle and Modern English, drench. In Middle English drench came to mean "to drown," a sense now obsolete; the sense "to steep, soak in liquid" and the current modern sense "to make thoroughly wet" developed by early Modern English times. Drink and drench are not the only such pairs in English, where one verb comes from a prehistoric Germanic causative; some others include sit and set ("to cause to sit"), lie and lay ("to cause to lie"), and fall and fell ("cause to fall").