A root in The Etymologies of the 1930s glossed “give way, make room, permit, allow”, with the derivatives in both Quenya and Noldorin having mostly to do with permission (Ety/DAB).
Middle Primitive Elvish
pē
noun. mouth, lips
pen(ed)
root. *hillside, slope
peres
root. affect, disturb, alter
peg
root. (?outer) mouth
pel(es)
root. revolve on fixed point
peltakse
noun. pivot
per
root. divide in middle, halve
epe
preposition. after
-(i)yē
suffix. perfect suffix
tekla
noun. pen
te
pronoun. personal 3rd pl.
dab
root. give way, make room, permit, allow
ken
root. see, perceive, look at, observe, direct gaze
kwǣnē
noun. small gull, petrel
panō
noun. plank, fixed board (especially in a floor)
kyen
root. see, perceive, look at, observe, direct gaze
ku(ʒ)
root. bow
The root ᴹ√KU(Ʒ) “bow” appeared in The Etymologies of the 1930s (Ety/KUƷ), most likely a later version of ᴱ√KUVU “bend, bow” from the Qenya Lexicon of the 1910s (QL/49). One notable derivative in both periods was G. cû “bow, crescent” and N. cû “arch, crescent”, which regularly appeared as S. cû “bow” in later writings, for example in S. Laer Cú Beleg “Song of the Great Bow” (GL/27; Ety/KUƷ; S/209).
The probably-related root ᴹ√KUB “bow” appeared in the Quenya Verbal System of the 1940s (PE22/102); ᴹQ. nukumna “humbled (?under-bowed)” from this period may also be related (SD/246). In notes from the late 1950s or early 1960s Tolkien gave ✶kūma, Q. cúma and S. cû(f) next to Q. lúva “bow, bight (not for shooting)” < √LUB “bend”, so presumably cúma/cû was “bow (for shooting)” (PE17/122). Finally Q. cúna “bent, curved” appeared in notes associated with the version of the Q. Markirya poem from the late 1960s, along with a verb form cúna- “to bend” (MC/222-223).
These variations make it difficult to determine what Tolkien intended the root to mean, but for purposes of Neo-Eldarin I would assume a base root of √KU(Ʒ) or √KU(H) with perhaps a verbal variant √KUB based on its use in the 1940s, and with the primitive sense “bow, bend”.
maiga
root. [unglossed]
An unglossed root appearing in the first version of Tengwesta Qenderinwa from the 1930s (TQ1) to illustrate certain patterns of root formation (PE18/66). It may have serving as the basis for ᴹQ. Maia, though this word was given different derivations later.
galad
root. tree
The basis for Elvish “tree” words, this root first appeared in The Etymologies of the 1930s as an extension of ᴹ√GALA “thrive” (Ety/GALAD). This replaced the earliest derivation of “tree” from the Qenya Lexicon of the 1910s, where the Qenya word for “tree” ᴱQ. alda was derived from ᴱ√ALA “spread” (QL/29). In The Etymologies, the Quenya form of this word remained the same, but the 1910s Gnomish words G. âl “wood” and †alwen “tree” (GL/19) became the 1930s Noldorin word N. galadh “tree” (Ety/GALA). Quenya and Sindarin retained these words for “tree” thereafter, and while Tolkien did not mention the root √GALAD again, his continued use of primitive ✶galadā “tree” (Let/426; PE17/153; PE21/74; UT/266) made it clear this root remained valid.
skwar
root. crooked
This root appeared in The Etymologies of the 1930s as ᴹ√SKWAR “crooked” with derivatives like ᴹQ. hwarin “crooked” and Dan. swarn “perverse, obstinate, hard to deal with” (Ety/SKWAR). In red-ink revisions to the Outline of Phonology (OP2) from the 1950s Tolkien decided that the initial combination skw- was not possible (PE19/78 and note #51). For purposes of Neo-Eldarin, this root might be salvaged by assuming its actual form was ᴺ√SWAR.
khlip
root. [unglossed]
An unglossed root in a rejected paragraph from the Quenya Verbal System of the 1940s (PE22/112 note #78).
ar
root. day
A root in The Etymologies of the 1930s glossed “day” with various derivatives like ᴹQ. are, N. aur “day” and ᴹQ. arin “morning” (Ety/AR¹). In Tolkien’s later writings, the Quenya word for “day” became aurë (RC/727; S/190), and in 1957 Quenya Notes he devised a new etymology for these day-words from the root √UR “heat” as in ✶auri “heat, period of sun” (PE17/148). That opens the question whether the various 1930s Quenya “morning” words from ᴹ√AR remain valid, but many Neo-Quenya writers (including me) retain them since there aren’t really any good alternatives. They might be salvageable as derivatives of the later root √AS “warmth” (so that “day” = “hot” and “morning” = “warm”).
sab
root. juice
This root was one of a surprisingly large number of roots Tolkien used for “juice”, appearing as ᴹ√SAB in The Etymologies of the 1930s with derivatives ᴹQ. sáva/N. saw “juice” (Ety/SAB). It might be a variant of (hypothetical) early root ✱ᴱ√WASA needed to explain the forms G. gwâs and ᴱQ. vasa “juice” in the Gnomish Lexicon of the 1910s (GL/44). The primitive form ᴹ✶sāba also appeared in a rough 1940 note with the word N. iofog “fruit drink”, though Tolkien ultimately decided the second element was derived from ᴹ√SUK “drink” (TMME/53).
Neo-Eldarin: For purposes of Neo-Eldarin, I would assume this root refers mainly fruit juice and pulp, as opposed to syrup and tree sap which would be derived from ᴹ√PIS.
skil
root. [unglossed]
A root mentioned in passing in as a variant of ᴹ√KIL “divide” in The Etymologies of the 1930s, but it had no derivatives and appeared nowhere else (Ety/KIL).
auluta-
verb. [unglossed]
danta-
verb. fall
dēr
noun. man
ezdē
noun. rest
ista-
verb. to know
kaltwa
?. [unglossed]
khe
pronoun. they
kuilez
noun. quiet
kwen(ed)
root. Elf
kwenedē
noun. Elf
kwentrō
noun. narrator, reciter, minstrel
kwet
root. say
kōmā
noun. [unglossed]
lassē
noun. leaf
mā
noun. land
nelek
root. tooth
parmā
noun. book
sed
root. rest
tam
root. knock
torōmā
noun. [unglossed]
tundu
noun. hole
we
pronoun. we (inclusive)
yē
preposition. at
ari
noun. day
galan
root. bright
kwentā
noun. tale
kwetta
noun. word
kwingā
noun. bow (for shooting)
pik
root. *tiny
skelta-
verb. to strip
thē
root. look (see or seem)
weʒē
noun. manhood, vigour
a-
prefix. complete
al
prefix. without
bay
root. [unglossed]
b’rássē
noun. heat
galadā
noun. tree
iw
root. [unglossed], [ᴱ√] *fish
karak
root. sharp fang, spike, tooth
khe
pronoun. we (inclusive)
kub
root. bow
kuu̯
noun. bow
kwessē
noun. feather
mit
root. small
A deleted root in The Etymologies of the 1930s glossed “small” with various Quenya and Noldorin derivatives of similar meaning (Ety/MIT).
mitra
adjective. small
nakse
noun. tooth
neñwi
noun. nose
nyol
root. ring
parkā
adjective. dry
phan
root. [unglossed]
A deleted root in The Etymologies of the 1930s with no glosses or derivatives and no clear function (EtyAC/PHAN).
ragnā
adjective. crooked
stin
root. [unglossed]
stā
root. [unglossed]
tambā-
verb. to knock
télesā
noun. rear
uruk
root. [unglossed]
A root in The Etymologies of the 1930s with no glosses or derivatives and no clear function (EtyAC/URUK).
us
root. [unglossed]
A root in The Etymologies of the 1930s with no glosses or derivatives and no clear function (EtyAC/US).
wegtē
noun. manhood
wínda-
verb. fade
yen
root. year
A root in The Etymologies of the 1930s glossed “year” with derivatives like ᴹQ. yén/N. în “year” (Ety/YEN). Tolkien’s ongoing use of words like Q. yén and S. ínias “annals” indicate its ongoing validity (LotR/377; MR/200), but in Quenya at least the meaning shifted to that of an “Elvish long year”, equal to 144 solar years (LotR/1107; MR/471; NM/84).
yenrinde
noun. year
A root in The Etymologies of the 1930s glossed “affect, disturb, alter” with derivatives like N. presta- “to affect, trouble, disturb” and N. pesso “it affects, concerns” (Ety/PERES; EtyAC/PERES). It had a short form ᴹ√PER (EtyAC/PERES), but in a separate entry in The Etymologies ᴹ√PER was glossed “divide in middle, halve” (Ety/PER) which doesn’t seem to be related.