An unglossed root in The Etymologies of the 1930s with derivatives like N. gath “cavern” and N. gador “prison, dungeon” (GAT(H)), so probably meaning something like “✱cave”. Its most notable derivative was N. Doriath “Land of the Cave”. But later on in this same entry, Tolkien added Doriathrin words Dor. gad “fence” and Dor. argad “outside the fence”, indicating a conceptual shift in the meaning of this root. Indeed, in later versions of The Silmarillion, S. Doriath was translated “Land of the Fence” containing the element S. iath “fence” (WJ/370, 378), so most likely ᴹ√GAT(H) “✱cave” was abandoned.
Middle Primitive Elvish
gat
root. *catch
gat(h)
root. *cave
gattā
noun. cavern
adnō
noun. gate
khoth
root. gather
ad
root. entrance, gate
A root in The Etymologies of the 1930s glossed “gate, entrance” (Ety/AD) that seems to have replaced ᴱ√BOÐO (QL/75) from the Qenya Lexicon of the 1910s. Its two main derivatives are ᴹQ. ando and N. annon “(great) gate, door”. These words in turn were transferred in 1959 to the root √ANA “to, towards”, from the original “approach, entrance” (PE17/40). Thus it seems Tolkien abandoned this root, perhaps because he wished to use it instead for √AD(A) “alongside, by the side of”, one of the etymologies Tolkien considered for the Eldarin words for “and” (PE17/71).
stā
root. [unglossed]
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.
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]
kaltwa
?. [unglossed]
khotsē
noun. assembly
kōmā
noun. [unglossed]
pheleg
root. cave
rǭda
noun. cave
torōmā
noun. [unglossed]
ungwē
noun. gloom
yakta-
noun. neck
bay
root. [unglossed]
iw
root. [unglossed], [ᴱ√] *fish
khlip
root. [unglossed]
An unglossed root in a rejected paragraph from the Quenya Verbal System of the 1940s (PE22/112 note #78).
phan
root. [unglossed]
A deleted root in The Etymologies of the 1930s with no glosses or derivatives and no clear function (EtyAC/PHAN).
stin
root. [unglossed]
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).
An unglossed root in The Etymologies of the 1930s with derivatives like ᴹQ. atsa “claw, catch, hook” and N. gad- “catch” (Ety/GAT), so probably meaning something like “catch”. It is not clear whether this root remained valid in Tolkien’s later writing.