A yogi (sometimes spelled jogi) is a practitioner of yoga. In Vedic Sanskrit, yoga (from the root yuj) means "to add", "to join", "to unite", or "to attach" in its most common literal sense, where in recent days, especially in the West, yoga often refers to physical exercises only. The term yogi is used broadly to refer to sannyasi or practitioners of meditation in a number of Indian religions. The feminine form is yogini, but is not always used, especially in the West.
Yogi, or jogi, since the 12th century CE, while meaning those dedicated to Yoga practice, has also referred to members of the Nath siddha tradition of Hinduism. Alternatively, in tantra traditions of Hinduism, Buddhism and Jainism, a practitioner of tantra (a tantrika) may also be called a yogi. In Hindu mythology, god Shiva and goddess Parvati are depicted as an emblematic yogi–yogini pair.
In Classical Sanskrit, the word yogi (Sanskrit: masc yogī, योगी; fem yoginī) is derived from yogin, which refers to a practitioner of yoga. Yogi is technically male, and yoginī is the term used for female practitioners. The two terms are still used with those meanings today, but the word yogi is also used generically to refer to both male and female practitioners of yoga and related meditative practices belonging to any religion or spiritual method.