sākaṁ pitṛ-pitāmahaiḥ

tebhyah-from them; agnayah-fire-gods; samabhavan-were produced; catvarimsat-forty; ca-and; panca-five; ca-and; te-they; eva-certainly; ekonapancasat-forty-nine; sakam-along with; pitr-pitamahaih-with the fathers and grandfather.