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.

Middle Primitive Elvish

el

root. star, starry sky

Middle Primitive Elvish [Ety/EL; Ety/RIG; Ety/ROD] Group: Eldamo. Published by

ʒel

root. sky

A root in The Etymologies of the 1930s glossed “sky”, with derivatives like ᴹQ. helle/N. ell “sky” and ᴹQ. helwa/N. elw “(pale) blue” (Ety/ƷEL). It was the basis for the initial elements of the names N. Elrond, N. Elwing and ᴹQ. Elwe, but elsewhere Tolkien connected these names to √EL “star”. It was also an element in the word N. eilian(w) “rainbow, (lit.) sky-bridge”, later given as S. ninniach. On the basis of these changes, I think it is likely Tolkien abandoned ᴹ√ƷEL, but some of its derived words are still popular in Neo-Eldarin.

Middle Primitive Elvish [Ety/ƷEL; Ety/YAT] Group: Eldamo. Published by

yel

root. friend

A new gloss for the root ᴹ√YEL “daughter”, with a new set of derivatives like ᴹQ. -iel “-friend” and ᴹQ. yelda “friendly” (Ety/YEL), but it was rejected in turn and probably replaced by ᴹ√MEL.

Middle Primitive Elvish [Ety/YEL] Group: Eldamo. Published by

mālō

noun. friend

Middle Primitive Elvish [Ety/MEL] Group: Eldamo. Published by

gilya

noun. star

Middle Primitive Elvish [Ety/GIL] Group: Eldamo. Published by

earendẹl

proper name. Earendẹl

Middle Primitive Elvish [PE21/34] Group: Eldamo. Published by

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.