Meaning

noun founder of Buddhism; worshipped as a god (c 563-483 BC)

noun one who has achieved a state of perfect enlightenment

originLearned borrowing from Pali Buddha (“the Awakened One, the Enlightened One”), from buddha (“awakened, enlightened”), from Sanskrit बुद्ध (buddha, “awakened, enlightened”), past participle of बोधति (bodhati, “to wake, to awaken”). Distantly related to English bid and bede. Also cognate with Proto-Slavic *buditi (“to wake up”).

Etymology from Wiktionary, CC BY-SA 3.0