A boy born to the Dawn weeps because he has no name. Prajapati gives him eight in turn, and each is identified with something in the world: fire, the waters, the plants, the wind, the lightning, the rain cloud, the moon, the sun. They are called the eight forms of Agni, with the boy as the ninth.
The Satapatha-Brahmana, tr. Julius Eggeling (Sacred Books of the East 12, 41) § 6.1.3
A thousand-eyed, thousand-footed archer rises from a golden bowl, seizes Prajapati and refuses to eat until he is named. The same eight names are given in a different order with different equations, and a vow is attached to each. He is called the great god of eight names.
No weeping infant; order begins with Bhava; equations differ; vows attached.
Rigveda Brahmanas: the Aitareya and Kausitaki Brahmanas, tr. A. B. Keith (1920) § kaushitaki.6.1-9
Sources: The Satapatha-Brahmana, tr. Julius Eggeling (Sacred Books of the East 12, 41); Rigveda Brahmanas: the Aitareya and Kausitaki Brahmanas, tr. A. B. Keith (1920)
Shiva creates Vishnu from the left of his body and Brahma from the right (through the lotus from Vishnu's navel), assigns creation, preservation and destruction, and stands beyond all three.
Brahma, himself born from Vishnu's navel lotus, grows angry when his mind-born sons refuse to procreate; from between his brows a crying child is born and named Rudra, given eleven places, names and consorts, and told to stop creating and practise austerity.
The Rigveda addresses Rudra in three whole hymns and mentions him about seventy-five times.
Scholars treat the Shiva of today as a figure merged from several older gods rather than one continuous cult.
A late Upanishad of the Black Yajurveda, in six chapters, takes up Rudra.
The gods rise to heaven by the sacrifice and leave the lord of cattle behind.
A student son of Manu is left out of the division of property.
Before the gods there are only the primordial waters.