A root in The Etymologies of the 1930s glossed {“break, rend asunder” >>} “break asunder” with derivatives ᴹQ. hat- of similar meaning and ᴹQ. terhat- “break apart” (Ety/SKAT). The latter was seen in early versions of the Lament of Atalante from the 1930s (LR/47, 56) only to eventually be replaced in the 1940s by ᴹQ. askante (SD/310) and then sakkante (SD/246), both of which may still have been related to ᴹ√SKAT.
Middle Primitive Elvish
ter
root. pierce
tēra
adjective. straight, right
teres
root. *pierced hole
ters-
noun. fine pierced hole
terēn(ē)
adjective. slender
terēwā
adjective. piercing, keen
gos
root. dread
skat
root. break asunder
tor
root. brother
Tolkien gave this root in The Etymologies of the 1930s as ᴹ√TOR “brother” with derivatives like ᴹQ. toron and N. tôr of the same meaning (Ety/TOR). Hints of the roots continued use appear in the 1959 term Q. melotorni “love-brothers” for close male friends (NM/20). In notes from the late 1960s, Tolkien gave Q. háno and S. hanar as the words for “brother”, both from the root √KHAN. Nevertheless, I think it is worth retaining ᴹ√TOR to represent more abstract notions of “brotherhood” for the purposes of Neo-Eldarin, for “metaphorical” brothers as opposed to Q. háno/S. hanar for brothers by blood.
ay(ar)
root. sea
adnō
noun. gate
arʒā
noun/adjective. dread
katwārā
adjective. shapely
mā
noun. land
parkā
adjective. dry
vaiā
noun. sea
ammat-
verb. to devour
angosse
noun. horror
gaisrā
adjective. dreadful
kantaya
adjective. shapely
star
root. stiff
thar
root. stand
tundu
noun. hole
ñgoroth
root. horror
A root in The Etymologies of the 1930s glossed “dread” with two variations: ᴹ√GOS and ᴹ√GOTH (Ety/GOS). It was an element in quite a few names in Silmarillion drafts from the 1930s, such as ᴹQ. Mandos “Dread Imprisoner” (Ety/MBAD), ᴹQ. Osse (Ety/GOS), N. Gothmog (Ety/MBAW), N. Tauros “Forest-Dread” (Ety/TÁWAR), and N. Dor-Daideloth “Land of the Shadow of Dread” (LR/405), the last of these containing N. deloth “abhorrence, detestation, loathing” = ᴹ√DYEL + ᴹ√GOTH (Ety/DYEL).
In Tolkien’s later writings, many of these names were given new forms or etymologies: Q. Mandos “Castle of Custody” = mando + osto (MR/350); Q. Ossë as an adaptation of his Valarin name Oš(o)šai (WJ/400); S. Tauron “Forester” (PM/358). This calls into question whether ᴹ√GOS or ᴹ√GOTH survived as a root. It does have a few useful derivatives for the purposes of Neo-Eldarin, however, such as N. gosta- “fear exceedingly”.