User blog comment:Jimeee/Skryim DLC Details Leaked in 1.5.26 Update Files - The Snow Prince!?/@comment-4499741-20120428035245/@comment-86.24.55.168-20120430195408

they were always called Falmer, they were first mentioned in the "fall of the snow prince" book in Bloodmoon. That was before it talked about them being evil mutants.