WotC's Yuan-Ti vs. Your Yuan-Ti

[Argyle King]

I usually replace Yuan-ti with snake cults, snake-people, and etc which are more similar to R. Howard's writing in both Conan and Kull.

 

[Kobold Avenger]

While my interpretation of Yuan-Ti are quite different from everyone else's in that they might not necessarily all be evil, and they're alignment is determined by which cult they belong to. They're naga-cultists and worship remnants of an ancient age in the distant past known as the Eon of Wyrms when most civilized creatures were all reptilian.

Though since everyone else doesn't use my interpretation, my thoughts about the different caste names like Pureblood, Halfblood and Abomination are solely that those names are names that Humans came up with. The standard Yuan-Ti probably do have their own names for the castes themselves.