§ Elements in Quenya and Sindarin Names The Silmarillion

dôr 'land' (i.e. dry land as opposed to sea) was derived from ndor; it occurs in many Sindarin names, as Doriath, Dorthonion, Eriador, Gondor, Mordor, etc. In Quenya the stem was blended and confused with a quite distinct word nórë meaning 'people'; in origin Valinórë was strictly 'the people of the Valar', but Valandor 'the land of the Valar', and similarly Númen(n)órë 'people of the West', but Númendor 'land of the West'. Quenya Endor'Middle-earth' was from ened 'middle' and ndor; this in Sindarin became Ennor (cf. ennorath 'middle lands' in the chant A Elbereth Gilthoniel).