impoverish

1. (transitive) To make poor.Synonyms: ruin, poortransitive

2. (transitive) To weaken in quality; to deprive of some strength or richness.Examples: "That exuberant crop quickly impoverishes any fertile soil."; "To many of us, organized religion is obnoxious. Yet if we throw out the sense of peace, order and joy that flows from religious ritual, we impoverish ourselves."Synonyms: depletetransitive

3. (intransitive) To become poor.intransitive