'Drain' in the Bible

The priest is to bring it to the altar to offer it up in smoke. He is to decapitate it and drain its blood on the side of the altar,

“Any Israelite or foreigner living among them, who hunts down a wild animal or bird that may be eaten must drain its blood and cover it with dirt.

I for my part will do this to you: I will inflict horror on you, consumption and fever, which diminish eyesight and drain away the vitality of life. You will sow your seed in vain because your enemies will eat it.