A root in The Etymologies of the 1930s glossed “sense, wisdom”, with the derivative ON. nuhina > N. noen “wise, sensible” (EtyAC/NUS). This is probably a later iteration of unglossed ᴱ√NUSU from the Qenya Lexicon with variant ᴱ√NUFU, both with derivatives having to do with “✱the act of smelling” such as ᴱQ. nuste “sense of smell” and ᴱQ. nuvu- “smell, sniff at” (QL/68). Derivatives in the contemporaneous Gnomish Lexicon also had to do with “smell”, but there were also words like G. nus- “take notice, perceive” and G. nusimos “sagacity” (GL/61). Hence the early root was also connected to the meanings “perceptive” and “wise”. The verb ᴹQ. nusta- “smell” from the Quenya Verbal System of the 1940s indicates Tolkien’s later conception of the root was also still connected to “(sense of) smell”.
Middle Primitive Elvish
nur
root. deep
nus
root. sense, wisdom, sense, wisdom; *sense of smell
nut
root. tie, bind
nu/unu
root. *down, under
ndū
root. go down, sink, set (of Sun)
nut-
verb. to tie, to tie, *bind
unu
root. *down, under
lī
noun. number
rimbā
adjective. frequent, numerous
doʒ
root. night
A root in The Etymologies of the 1930s glossed “night” that (along with ᴹ√DOM) was the basis for the ᴹQ. lóme/N. dû “night” (Ety/DOƷ). It replaced some rejected variants ᴹ√LOƷ and ᴹ√DAW (EtyAC/LOƷ). Many of the derivatives of ᴹ√DOƷ were later assigned to other roots: N. dûr “dark” became S. dûr “dark” < √NDU “under, down” in notes from the late 1950s or early 1960s (PE17/152) and ᴹQ. lóna “dark” became Q. lúna (PE17/22). There are no signs of ᴹQ. ló “night” and N. daw “night-time, gloom” in Tolkien’s later writing. Future derivations of Q. lómë/S. dû only mention the root √DOM (PE17/152; PE22/153) and thus ᴹ√DOƷ may have been abandoned.
In a message to the Elfling mailing list from July 2012 (Elfling/362.96), David Salo suggested there might be a later root ✱√DU serving as the basis for Q. lúna “dark” and Q. lúmë “darkness”, though the latter might instead be from √LUM. Such a root ✱√DU is not attested in Tolkien writings, but if it existed, it could be a later iteration of ᴹ√DOƷ. Another possible example of the root ✱√DU is primitive ✶durnŭ “dark of hue”.
nūrā
adjective. deep
(a)yan
root. *holy
aı̯an-
adjective. holy
n(d)ur
root. bow down, bend (low), obey, serve; grow/be dark
nay
root. lament
ndulla
adjective. dark, dusky, obscure
ndulna
adjective. secret
nāyǝ
noun. lament
ṇdūnē
noun. sunset
a-
prefix. complete
day
root. shadow
dōmilindē
noun. nightingale
ithil
noun. moon
kelun
noun. river
kwentā
noun. tale
mizdā
adjective. wet
ndeuro
noun. follower, successor
ndūne
noun. west
pathnā
adjective. smooth
ranā
proper name. Moon
rap
root. bind
snar
root. tie
stintā
root. short
tap
root. stop
A root in The Etymologies of the 1930s glossed “stop” with derivatives like ᴹQ. tampa “stopper” and ᴹQ. tape “he stops, blocks” (Ety/TAP; EtyAC/TAP). The word Q. tapta “impeded” from notes associated with the Quendi and Eldar essay of 1959-60 was probably related (VT39/17), indicating the root’s ongoing validity.
tubnā
adjective. deep
wanwē
noun. death
wed
root. bind
A root in The Etymologies of the 1930s glossed “bind” with derivatives like ᴹQ. vére/N. gwaedh “bond, troth, compact, oath” and ᴹQ. vesta-/N. gwesta- “swear”, though Tolkien deleted Quenya derivatives of this root beginning with ves- saying they fell out of use due to conflict with ᴹ√BES “wed” (Ety/WED). This root might be a later iteration of the hypothetical early root ✱ᴱ√FEDE indicated by words in the Gnomish Lexicon of the 1910s like G. fedhin “bound by agreement; ally, friend” and G. fedhra- “unite in a band” (GL/34), but the 1910s and 1930s forms are rather dissimilar so it is hard to say.
wedā
noun. bond
yan
root. *holy
ñgolda
adjective. wise
ñol-
noun. smell
A root mentioned in The Etymologies as an extension of ᴹ√NU with the gloss “deep” and derivatives ᴹQ. núra and N. nûr of the same meaning (Ety/NU). Possibly related is the later word Q. nurtalë “hiding” as in Q. Nurtalë Valinóreva “Hiding of Valinor” (S/102).