Buddha (n.)

an epithet applied to the historical founder of Buddhism, 1680s, from Pali, literally "awakened, enlightened," past participle of budh "to awake, know, perceive," which is related to Sanskrit bodhati "is awake, observes, understands," from PIE root *bheudh- "be aware, make aware." Title given by his adherents to the man who taught this path, Siddhartha Gautama, also known to them as Sakyamuni "Sage of the Sakyas" (his family clan), who lived in northern India 5c. B.C.E.