Greek name (Τιτάν), comes from the ancient Greek word τῐταίνω [tĭtaíno] - "to strain".
In Greek mythology, the Titans were a race of powerful deities, descendants of Gaia and Uranus, that ruled during the legendary Golden Age.
In the first generation of sixteen Titans, the males were Oceanus, Hyperion, Coeus, Cronus, Crius and Iapetus and the females were Mnemosyne, Tethys, Theia, Phoebe, Rhea and Themis. The second generation of Titans consisted of Hyperion's children Eos, Helios, and Selene; Coeus's daughters Leto and Asteria; Iapetus's sons Atlas, Prometheus, Epimetheus, and Menoetius; Oceanus' daughter Metis; and Crius's sons Astraeus, Pallas, and Perses. Aigaios, Titan of sea storms, was mentioned to have been a Titan, but not among the original twelve.
The role of the Titans as Elder Gods was overthrown by a race of younger gods, the Olympians, in the Titanomachy ("War of the Titans") which effected a mythological paradigm shift that the Greeks may have borrowed from the Ancient Near East.