WhaddaI think? I think we *do have a word for it; we just don't use it in that context. We feed horses, we feed cows, we feed pigs, we feed children and the homeless and our relatives on Thanksgiving and Christmas and Passover. We water horses, we water cows, we water pigs. We don't water our children and the homeless and our relatives. Maybe because food takes work or money; water doesn't. When we water the livestock we transport water to them in one way or another. The (almost) youngest sprat can go to the faucet and get some water.