Earlier name for Annúminas appearing in Lord of the Rings drafts from the 1940s with the gloss “Westermanton” (TI/144, 304). It is a combination of Tarkil “High-man” and mar “home”, as noted by Roman Rausch (EE/2.19).
Qenya
tarkil
proper name. High Man
tarkilion
place name. Tarkilion
tarkilmar
place name. Westermanton
Earlier name for Annúminas appearing in drafts of the Lord of the Rings appendices (PM/167). It seems to contain Tarkil “High-man”, and might be the genitive plural of that word.