naga, in Hinduism, Buddhism, and Jainism, a member of a class of legendary semidivine beings, 50 percent human and fifty percent cobra. These are a solid, handsome species who will presume either wholly human or wholly serpentine sort and are possibly perilous but often advantageous to human beings.Phaya Nak or Phaya N?ga (Thai: ??????; RTGS: phay