https://www.google.com/search?q=Asura
https://www.google.com/search?q=Daitya
https://www.google.com/search?q=Rakshasa
Source
The powerful son of Drona, As’vatthâmâ, was born of the four parts of Yama, Rudra, Cupidity and Anger.
http://longestepic.blogspot.com/search/label/Ashwatthama
Source