Apas
The Waters of the Rigveda, a company of goddesses always addressed in the plural, as mothers and young women. Four hymns are theirs (RV 7.47, 7.49, 10.9, 10.30). They come from heaven, are dug from the earth or flow free, and run to the sea; Indra dug their channels, Varuna walks among them watching men's truth and falsehood, Agni entered them and the Child of the Waters shines in them. They heal, give long life and carry away lies and wrongdoing. The Brahmanas say the Waters are the sacrifice. Later worship turns to named rivers, above all Ganga, while verses of RV 10.9 are still recited when water is sprinkled in daily prayer.
Sources: Hymns of the Rigveda, tr. R. T. H. Griffith (1896), hymns read for the Vedic layer; Vedic Mythology, A. A. Macdonell (1897); Rigveda Brahmanas: the Aitareya and Kausitaki Brahmanas, tr. A. B. Keith (1920) · see Apas's web