Adi-Buddha
The Ādi-Buddha (Tibetan: དང་པོའི་སངས་རྒྱས།, Wylie: dang po'i sangs rgyas, THL: Dangpö Sanggyé, Ch: 本佛, Jp: honbutsu, First Buddha, Original Buddha, or Primordial Buddha) is a Mahayana Buddhist concept referring to the most fundamental, supreme, or ancient Buddha in the cosmos. Another common term for this figure is Dharmakāya Buddha.