Early Quenya
eldamar
place name. Elfhome, Elfland
eldaros
place name. Elfhome
v’ematte sinqi eldamar
*that they call to mind the gems of Elven-home
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
Another name for Ælfwine from the earliest Lost Tales, also appearing as Eldos and glossed “Ælfhâm” or “Elfhome” (LT2/301-2). It seems to be a compound of Elda “Elf” and (perhaps) os “house”.