A great beech-tree in Doriath (S/172), translated by Christopher Tolkien as “Tree of the Lady” (SI/Hírilorn). This name is a combination of híril “lady” and orn “tree” (SA/heru, orn).
Conceptual Development: In the earliest Lost Tales, the tree was first named G. Golosbrindi “Queen of the Forest” (LT2/51), revised to G. Hirilorn “Queen of Trees” (LT2/18). In the Lays of Beleriand from the 1920s, the name was translated “Beechen Queen” (LB/202). In The Etymologies from the 1930s, Ilk. Hirilorn was given as a Doriathrin name, most likely with the same meaning as above (Ety/NEL).
híril (“lady”) + orn (“tree”)