A root in The Etymologies of the 1930s glossed “large, great in size” with only two derivatives: the adjective ᴹQ. alta of the same meaning, and ᴹQ. Alataire “Great Sea” (Ety/ÁLAT), the Quenya equivalent (but not direct cognate) of S./N. Belegaer/Belegoer. The Quenya name appears nowhere else other than The Etymologies. There are quite a few words in Tolkien’s later writings that also mean “great, large”, but there is nothing that directly contradicts the continued validity of this root either.
Middle Primitive Elvish
lar
root. rich, fat
lakra
adjective. swift, rapid
alat
root. large, great in size
buzbō
noun. large fly
spinē
noun. larch
rim
root. abound; large number
A root in The Etymologies of the 1930s glossed “abound” with derivatives such as ᴹQ. rimbe/N. rhim “crowd, host” (Ety/RIM). A likely precursor to this root appeared in the Qenya Lexicon of the 1910s as ᴱ√‘(A)ṚM(A)R and ᴱ√‘ṚMṚ with a Gnomish form ᴱ√grimri· (QL/32), indicating the actual primitive form was ✱ᴱ√ƷṚMṚ. Derivatives of this early root include ᴱQ. arm- “gather, collect” and G. grim “host, folk”, the last of these the likely precursor to N. rhim.
The root ᴹ√RIM also appeared in Primitive Quendian Structure: Final Consonants from 1936, glossed “host, large number” >> “number, plenty” (PE21/57). Quenya and Sindarin forms Q. rimbë and S. rim continued to appear in Tolkien’s later writing (Let/382; PE17/50; UT/318), so it is likely the root √RIM remained valid, especially given the prevalence of suffix -rim in Sindarin collective names.
buzbu
root. *large fly
daʒrā
adjective. great, large
ur
root. wide, large, great
li
root. many; large people
gonod
root. stone
The Elvish words for “stone” were established very early as Q. ondo and S. gond. In the Qenya Lexicon of the 1910s Tolkien gave the root of these words as ᴱ√ONO “hard” with derivatives like ᴱQ. ondo “stone, rock” and ᴱQ. onin “anvil” (QL/70). But its Gnomish derivatives like G. gonn “stone” and G. gontha “pillar” (GL/41) indicate the actual root was ✱ᴱ√ƷONO, since initial ʒ > g in Gnomish.
In The Etymologies of the 1930s Tolkien gave the root as ᴹ√GONOD or √GONDO “stone” with essentially the same Elvish forms: ᴹQ. ondo and N. gonn (Ety/GOND). The root itself did not appear in later writings, but Tolkien continued to state, with great frequency, that the primitive form of the word was ✶gondō (Let/410; PE17/28; PE18/106; PE21/81; PM/374; RC/347).
daʒ
root. great
dal
root. flat
kab-
verb. can, I can
kelun
noun. river
lak
root. swift
lāda
adjective. flat
patnā
adjective. wide
ub
root. abound
ubrā
adjective. abundant
A root in The Etymologies of the 1930s glossed “rich, fat” (EtyAC/LAR), a later iteration of the root ᴱ√LARA from the Qenya Lexicon of the 1910s which had derivatives like ᴱQ. laru “fat, grease” and ᴱQ. laruke “fat, rich” (QL/51). The 1930s root includes the derivative ᴹQ. larma “[?pig-]fat, flesh” so it likewise seems to refer to fatty flesh and rich food, but in the 1930s it replaced a deleted entry with both ᴹ√LAR and ᴹ√LAS whose derivatives had glosses connected to blessedness and luck (EtyAC/LAR), so it seems Tolkien was vacillating somewhat on the meaning of this root.