Yoni (Sanskrit: योनि yoni) is a Sanskrit word that means “womb, vulva, vagina, place of birth, source, origin.” The word also has a wider meaning in both profane and spiritual contexts, including “spring, fountain, place of rest, repository, receptacle, seat, abode, home, lair, nest, stable” (Monier-Williams). It is also etymologically derived from the root yuj, like yoga and yogini—meaning, “to join, unite, fasten, or harness.”
The yoni is also considered to be symbolic of Shakti or Devi in Hindu Tantra.