sub

root. sink (esp. in water)

The root ᴹ√SUB “sink, esp. in water” appeared in a rejected page of verbal roots from the Quenya Verbal System (QVS) written in 1948, where it had a derived past tense form ᴹQ. sumbe “✱sank” as well as a distinct verb form ᴹQ. sumba- “to submerge” (PE22/127). It might be a later iteration of the unglossed root ᴱ√SUQU in the Qenya Lexicon of the 1910s, with derivatives like ᴱQ. sunqa “going down, descending; abysmal, deep, profound” and ᴱQ. suq- “fall, fail, go down, die down” (QL/87).

Neo-Eldarin: I think it is worth retaining ᴺ√SUB “sink” as a Neo-Root.

-jĕ

suffix. subjunctive affix

mbaw

root. compel, force, subject, oppress

A root in The Etymologies of the 1930s glossed “compel, force, subject, oppress”, with derivatives ᴹQ. maure/N. baur “need” and N. baugla- “to oppress” (Ety/MBAW), the latter serving as the basic for one of the names of Morgoth: N. Bauglir “Constrainer” (LR/206). Tolkien’s continued use of S. Bauglir in later writings (S/104) indicate the ongoing validity of this root.

baradā

adjective. lofty, sublime

kiryaktō

noun. shipwright

stal

root. steep

A root in The Etymologies of the 1930s glossed “steep” with derivatives like Ilk. thall “steep, falling steeply (of river)” and Ilk. thalos “torrent”, the latter used for the river name Ilk. Thalos (Ety/STAL). Tolkien continued to use the name S. Thalos in later versions of The Silmarillion, but the name was translated nowhere else, making its continued connection to the 1930s root uncertain.

tārā

adjective. lofty

tārī

noun. queen