Saranyu is called cloud and as wife of Vivasvat or Vivasat is mother of Asvins Yama and Yami. saraNyu m. a protector , defender wind , air (prob. for {saraNyu}) a cloud . 2 saraNyu mfn. quick , fleet , nimble m. (only L.) wind ; a cloud ; water ; spring ; ({U}) f. N. of a daughter of Tvashtri (in RV. represented as the wife of Vivasvat and mother of the two Asvins , and accord. to some , of the twins Yama and Yami , whom she brought forth in the form of a mare accord. to some also N. of the Dawn In other versions Saranyu bears twins to Vayu.