A sage of old who led a good life and persuaded his followers to do likewise.
He was among the originators of the Vedic hymns. Vin.i.245; D.i.238, 239; M.ii.169, 200; A.iii.224, 229; iv. 61; also J.vi.251, where he is called Yámataggi and is described as a king of old. Cp. Vedic Index, see Jamadagni.