Language Analog: Lizardfolk speak dialects of the monster language Draconic, which has no real-world analog.
Inspiration: Traditional lizardfolk from the various editions of D&D.
Lizardfolk, in BD&D, are just a monster. I had not considered their overall place in the world when I made them the inhabitants of the Temple of Akhnaphar. Their presentation in that adventure is "explained" here.
They are presented as a playable race in 5th edition in Volo's Guide to Monsters. As lizardfolk are rare, lizardfolk player characters are very rare.-----
Tainted Counterpart: Troglodytes
Temperamental Association: By dominant scale coloration.