Ethos Cookies, the original, was created by Ethos Genetics when they crossed Mandarin Cookies #17 with Colin OG #1. There are several versions of Ethos Cookies, like Ethos Cookies R2 and RBX, which are crosses of various Ethos Cookies phenotypes.   

The top reported aromas of Ethos Cookies are cinnamon, hops, and citrus. And it is said to taste similar.