Hindoo is a term used to refer to people who practice Hinduism, an ancient religion originating in India. It is the world's third largest religion and is based on the teachings of the Vedas, Upanishads, and other scriptures. The term Hindoo is derived from the Sanskrit word 'hindu, ' which means 'dweller in the Indus Valley.' Hindus believe in one Supreme Being, Brahman, and the cycle of birth, death, and rebirth. They also believe in karma, the law of cause and effect, and dharma, the moral law.