History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c39.s3.5

v1.c39.s3.5

Gradually, separation was introduced in the society by the dominating priestcraft, and this caused degeneration and the rise of varṇāśrama or hereditary caste (ṚV. 10.90.12). The white Yajurveda referred to the vaidyas (medical men) in derogatory terms.