A forested cape south of the mouth of Baranduin first named on the Pauline Bayne map of Middle-earth from 1970 (RC/lxv). The name is translated “Dark Wood”, a combination of eryn “woods” and the lenited form of morn “dark”.
Sindarin
Eryn Vorn
noun. dark wood
eryn vorn
place name. Dark Wood
eryn (“wood”), morn (“black, dark”)