This root first appeared as ᴹ√RAS “stick up (intr.)” in The Etymologies of the 1930s with derivatives like ᴹQ. rasse and N. rhas or rhasg “horn (especially on living animal, but also applied to mountains)” (Ety/RAS; EtyAC/RAS). It reappeared as ᴹ√RASA “stick up” on an rejected page of roots in the Quenya Verbal System from the 1940s (PE22/127). Finally, √RAS “horn” appeared in Common Eldarin: Noun Structure of the early 1950s, but that was merely the last appearance of the root in Tolkien’s published writings. Q. rassë and S. rass “horn” continued to appear regularly as an element in mountain names in the 1950s and 60s.
Primitive elvish
tha
pronoun. tha
thandā
noun. shield
kā
root. after (later than) of time
ara
preposition and adverb. beyond, further than
katar
?. *after (later than) of time
kata
root. after (later than) of time
kha
pronoun. kha
dond(a)
noun. fist
kwāra
noun. fist
lā̆
preposition/adverb. beyond
ras
root. horn, horn; [ᴹ√] stick up
rass
noun. horn
A root appearing in notes from the late 1960s glossed “after (later than) of time”, appearing in variants √KĀ and √KATA (PE22/147), the latter perhaps being KA + TA. Although the root itself did not appear until very late in Tolkien’s writing, there are hints of it much earlier, with ᴹQ. kata “after” and ᴹQ. kato “afterwards” appearing in the Quenya Verbal System (QVS) from 1948 (PE22/124). Probably also related is S. cad which also likely meant “after”, appearing in drafts of the Lord of the Rings appendices, notably in Cadlaer “July, ✱After-summer” vs. Eblaer “June, ✱Before-summer” (PM/136). There is also a set of preposition from the middle of the 1950s Q. ca-, cata, cana: “behind, at back of place” which may be related (VT43/29-30); Tolkien often used the same roots for both spatial and temporal relations.