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.

Early Primitive Elvish

po

root.

Early Primitive Elvish [QL/074] Group: Eldamo. Published by

pol-i

root.

Early Primitive Elvish [QL/075] Group: Eldamo. Published by

ru’u

root.

An unglossed root in the Qenya Lexicon of the 1910s, probably actually ✱ᴱ√RUƷU, with derivatives like ᴱQ. “dwelling, village, hamlet”, ᴱQ. rue “rest, stillness, remaining, steadfastness”, and ᴱQ. ruin “peace” (QL/80). There were a number of likely-related words in the contemporaneous Gnomish Lexicon such as G. “enduring, long suffering; quiet, gentle, docile”, G. “dwelling, house”, and G. rûtha- “dwell, remain”, though Tolkien seems to have rejected the Gnomish forms beginning with rô- (GL/66). There are no signs of this root in Tolkien’s later writing, but I think it is worth positing a Neo-Root ᴺ√RUH “✱still” to preserve some of these early words.

Early Primitive Elvish [QL/080] Group: Eldamo. Published by

siŋi

root.

The root ᴱ√SIŊI appeared unglossed in the Qenya Lexicon of the 1910s with derivatives ᴱQ. singe “salt” and (adjective) ᴱQ. singwa “salt” (QL/83). It had similar derivatives the contemporaneous Gnomish Lexicon: G. sing and singrin “salt”, noun and adjective (GL/67). I think it is worth positing a Neo-Root ᴺ√SIÑGI to salvage these early words.

Early Primitive Elvish [QL/083] Group: Eldamo. Published by

sṣtyṣ

root.

The unglossed root ᴱ√SṢT͡YṢ appeared in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. sastya “sore, galled” and ᴱQ. sist (sisty-) “ulcer, sore” (QL/86). The latter word was also mentioned as siste in “ulcer, boil” as a derivative of ᴱ✶sṣtē (PE12/14), and the primitive form was given as sistyi, though Tolkien did say it was indicative of ancient syllabic (PE12/3). However, in the Early Noldorin Dictionary of the 1920s it seems primitive ᴱ✶sṣt- = “✱hiss” (PE13/163); see the entry on ᴹ√SUS “hiss” for discussion.

Neo-Eldarin: For purposes of Neo-Eldarin I think it is worth positing a Neo-Root ᴺ√SISTI to salvage some of these early words.

Early Primitive Elvish [PE12/003; QL/086] Group: Eldamo. Published by

vḷkḷ

root.

An unglossed root in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. valkane “torture” and ᴱQ. vilkin “bitter, evil”, serving as the basis for ᴱQ. Valkarauke, the Qenya name of Balrogs (QL/100). In later writings the initial element of this name was derived from √BAL “(divine) power”.

Early Primitive Elvish [QL/101] Group: Eldamo. Published by

gwori

root.

Early Primitive Elvish [QL/104] Group: Eldamo. Published by

hama

root.

Early Primitive Elvish [QL/039] Group: Eldamo. Published by

nulu

root.

An unglossed root in the Qenya Lexicon of the 1910s marked by Tolkien with a “?” having a single derivative ᴱQ. NÛLE “lead” (QL/68). There are no signs of this root elsewhere in Tolkien’s later writing, and even in the early period he generally used ᴱQ. kanu for “metallic lead” (LT1/100; QL/44).

Early Primitive Elvish [QL/068] Group: Eldamo. Published by

oso

root.

An unglossed root in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. oksa “joint” and ᴱQ. oswe “hip” (QL/71). To salvage these words, I would revise this early root to ᴺ√OTH as a variant of ᴹ√OS “round, about” referring to a rotating joint. If you are not comfortable with this, derivatives of √LIM “link, join” might also be useable for joints, based on Q. málimë/S. molif “wrist, (lit.) hand-link” (VT47/6).

Early Primitive Elvish [QL/071] Group: Eldamo. Published by

root.

Early Primitive Elvish [QL/082] Group: Eldamo. Published by

tum(b)u

root.

Early Primitive Elvish [LT1A/Tombo; QL/095] Group: Eldamo. Published by

Reconstructed

root.

Early Primitive Elvish [QL/072] 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.