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.
laru
noun. fat, grease
mange
noun. grease
A word for “grease” in the Qenya Lexicon of the 1910s derived the early root ᴱ√MṆGṆ (QL/62), with syllabic *ṇ* becoming *an* [aŋ] which was the most common result in Early Qenya (PE12/10).
anqa(r)
noun. ear
pyúva
adjective. fat
qan
noun. ear
lár
noun. ear
lhub
noun. fat
A noun appearing as ᴱN. lhub “fat” in Early Noldorin Word-lists of the 1920s (PE13/149). It was a later iteration G. lub “fat, fat flesh” in Gnomish Lexicon of the 1910s derived from primitive ᴱ✶lūpe (GL/55).
Neo-Sindarin: I think it is worth retaining these words for purposes of Neo-Sindarin as ᴺS. lûb “fat, (fat) flesh” from a Neo-Root ᴺ√LUP.
thalf
noun. grease
A noun appearing as ᴱN. thalf “grease” in Early Noldorin Word-lists of the 1920s, a derivative of primitive ᴱ✶stalqe (PE13/153). It is probably unrelated to similarly formed words like ᴱN. thala “valiant” and ᴱN. thalion “warrior hero” from the same document whose primitive forms begin with stalg- (PE13/153).
Neo-Sindarin: Since this word coexisted with ᴹ√STALAG derivatives in the 1920s, I would assume the same would be true in Tolkien’s later writing. Therefore I’d retain this word as ᴺS. thalph “grease” for purposes of Neo-Sindarin, revised to fit the phonology of later Sindarin and derived from some otherwise-obscure triconsonantal root.
sṛkṛ
root. fat
lassē
noun. ear
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.
lar
fat, riches
lar (1) noun "fat, riches" (VT45:26; Hostetter and Wynne suggest that the second gloss should perhaps read "richness" rather than "riches")
lár
ear
lár (2) noun "ear" (?). Tolkien's wording is not clear, but ¤lasū is given as an ancient dual form "(pair of) ears"; Quenya lár could represent the old singular las- (LAS2). In a post-LotR source, Tolkien derives hlas "ear" (dual hlaru) from a stem SLAS(PE17:62). Initial hl- rather than l- reflects the revised form of the stem (LAS becoming SLAS), and in the later version of the phonology, postvocalic -s does not become -r when final. Compare the noun "dream", given as olor in the Etymologies (LOS), but as olos pl. olori in a later source (UT:396)
laru
noun. grease, fat
hlas
ear
hlas noun "ear", stem hlar- as in the dual form hlaru (PE17:62). Compare lár #2.
hlas
noun. ear
The Quenya word for “ear” is derived from primitive √S-LAS, an elaboration of √LAS “listen” (PE17/62, 77). It had a stem form of hlar- because medial *s* generally became *z* and then *r*, but the s was preserved when final.
Conceptual Development: In The Etymologies of the 1930s the word for “ear” was derived directly from ᴹ√LAS “listen”, and had the form lár (Ety/LAS²). This seems to be a brief reversion to Early Qenya phonology of the 1910s, where medial s survived and it was final *s* that became *r* (PE12/26); compare to ᴹQ. kár (kas-) “head”, also from The Etymologies (Ety/KAS). In that document, the Noldorin word for “ear” was N. lhewig, a singular form based on the fossilized dual lhaw (Ety/LAS²). The voiceless lh- in this word was the result of the Noldorin sound-change of the 1930s whereby ancient initial *r-, l-* were unvoiced.
This Noldorin word made it into Lord of the Rings drafts as part of Amon Lhaw “Hill of Hearing, (lit.) Hill of Ears” (TI/364), a form that Tolkien retained in the published version (LotR/393). Since the unvoicing of initial l was no longer a feature of Sindarin of the 1950s and 60s, Tolkien needed to contrive a new derivation from primitive √S-LAS, which also necessitated a change in the Quenya cognate to voiceless initial hl-.
Early Qenya words for “ear” from the 1910s had a completely different basis. They include ᴱQ. ankar (ankas-) “ear (of men)”, ᴱQ. qan (qand-) “ear”, and ᴱQ. unk (unq-) “ear (of animals)” from the Qenya Lexicon, all based on the root ᴱ√ṆQṆ (QL/31, 76, 98). The last of these reappeared as unko “ear” in the Early Qenya Grammar of the 1920s and contemporaneous word lists (PE14/52, 76, 117; PE15/71), but seems to have been abandoned by the 1930s.
lárëa
fat, rich
lárëa (1) adj. "fat, rich" (VT45:26)
lhaw
noun. ears (referring to one person's pair of ears only)
lhewig
noun. ear
lhewig
noun. ear
huzun
noun. ear
A noun translated as “ear” and fully declined as an example of a Strong I noun (SD/430).
slas
root. ear
slas
noun. ear
lhaw
noun. ears (referring to one person's pair of ears only)
lheweg
noun. ear
The Sindarin word for “ear” was derived from primitive √S-LAS, an elaboration of √LAS “listen” (PE17/62). Its singular form lheweg is somewhat unusual. Based on its Quenya cognate Q. hlas (< ✶slas), its historical singular should probably be ✱lhâ. However, the modern Sindarin form was actually based on the (fossilized) dual lhaw < ✶slasū, from which a singular form lheweg “ear” was derived using the singular suffix -eg < -ikā (PE23/136), though it isn’t clear why the base vowel also changed from a to e since *a*-affection normally precedes (and prevents) *i*-affection.
The typical word for “ears” is the fossilized dual lhaw, but that can only be used to refer to the pair of ears on a single person, and this lhaw is treated as singular noun for purposes of verb and adjective agreement. When referring to multiple ears more generally, the plural lhewig is used (PE23/136).
Conceptual Development: Tolkien described a similar scenario in The Etymologies of the 1930s, except the singular was N. {lhaweg >>} lhewig and it was derived directly from ᴹ√LAS “listen” (Ety/LAS²; EtyAC/LAS²). The voiceless lh- in this word was the result of the Noldorin sound-change of the 1930s whereby ancient initial *r-, l-* were unvoiced. This Noldorin dual lhaw made it into Lord of the Rings drafts as part of Amon Lhaw “Hill of Hearing, (lit.) of Ears” (TI/364), a form that Tolkien retained in the published version (LotR/393). Since the unvoicing of initial l was no longer a feature of Sindarin of the 1950s and 60s, Tolkien needed to contrive a new derivation from primitive √S-LAS.
The Gnomish word for “ear” from the 1910s had a completely different basis: it was G. unc “ear, handle (of a jar)” (GL/75), cognate to ᴱQ. unk derived from the root ᴱ√ṆQṆ (QL/98).
lhaw
ears
(?i thlaw or ?i law).
lhewig
ear
lhewig (?i thlewig or ?i lewig the lenition product of lh is uncertain). This ia a singular formed from the collective
lhewig
ear
(?i thlewig or ?i lewig – the lenition product of lh is uncertain). This ia a singular formed from the collective
thalph
noun. grease
tûg
fat
tûg (lenited dûg, pl. tuig) (thick)
tûg
fat
(lenited dûg, pl. tuig) (thick)
A word appearing as ᴱQ. laru “fat, grease” in the Qenya Lexicon of the 1910s under the early root ᴱ√LARA whose derivatives had to do with fat (QL/51). In Early Qenya Word-lists of the 1920s Tolkien instead had ᴱQ. lise {“greasy” >>} “grease”, with an accusative form lisya- indicating a stem lisy- (PE16/141). In Qenya Declensions also from the 1920s, its partitive form lisihta was glossed “of butter” (PE16/115).
Neo-Quenya: The root ᴹ√LAR “fat, grease” from The Etymologies of the 1930s seems to indicate that lisy- was a transient idea, so I would retain ᴺQ. laru for purposes of Neo-Quenya, but would use it only for “grease”. For “fat” I would instead use ᴹQ. larma (Ety/LAR). Note that Tolkien also had the adjective Q. (h)lúvo “greasy, fat” in notes from the early 1950s (PE21/82) but gave no noun form.