Ad. Arminalêth pn. “*Royal Heaven (City)”
The Adûnaic name for the capital of Númenor, whose Quenya name is
Armenelos (SD/363, PM/145). The final element
-êth seems to be a feminizing suffix, also seen in Ad.
Akallabêth. The initial element
Ar- is the same as that used in the name of kings and queens, and the middle element
minal means “heaven”, so perhaps the literal meaning is something like *“Royal Heaven (City)”, similar in the sense to the Quenya
name.