A root in The Etymologies of the 1930s glossed “day” with various derivatives like ᴹQ. are, N. aur “day” and ᴹQ. arin “morning” (Ety/AR¹). In Tolkien’s later writings, the Quenya word for “day” became aurë (RC/727; S/190), and in 1957 Quenya Notes he devised a new etymology for these day-words from the root √UR “heat” as in ✶auri “heat, period of sun” (PE17/148). That opens the question whether the various 1930s Quenya “morning” words from ᴹ√AR remain valid, but many Neo-Quenya writers (including me) retain them since there aren’t really any good alternatives. They might be salvageable as derivatives of the later root √AS “warmth” (so that “day” = “hot” and “morning” = “warm”).
Middle Primitive Elvish
rin
root. *circle
ringi
root. cold
rinki
noun. flourish, quick stroke
yenrinde
noun. year
lokko
noun. ringlet
nyel
root. ring, sing, give out a sweet sound
nyol
root. ring
ar
root. day
thel(es)
root. sister
Tolkien gave this root in The Etymologies of the 1930s as ᴹ√THEL and extended form ᴹ√THELES with the gloss “sister” and derivatives like ᴹQ. seler and N. thêl of the same meaning, both derived from the extended root as made clear by the Noldorin plural thelei < ON. thelehi (Ety/THEL). Hints of the roots continued use appear in the 1959 term Q. meletheldi “love-sisters” for close female friends (NM/20). In notes from the late 1960s, Tolkien gave Q. nésa and S. nethel as the words for “sister”, both from the root √NETH. Nevertheless, I think it is worth retaining ᴹ√THEL(ES) to represent more abstract notions of “sisterhood” for the purposes of Neo-Eldarin, for “metaphorical sister”s as opposed to Q. nésa/S. nethel for sisters by blood.
kor
root. round
yen
root. year
A root in The Etymologies of the 1930s glossed “year” with derivatives like ᴹQ. yén/N. în “year” (Ety/YEN). Tolkien’s ongoing use of words like Q. yén and S. ínias “annals” indicate its ongoing validity (LotR/377; MR/200), but in Quenya at least the meaning shifted to that of an “Elvish long year”, equal to 144 solar years (LotR/1107; MR/471; NM/84).
ari
noun. day
lak
root. swift
lepet
root. finger
lisge
noun. reed
This root first appeared as unglossed ᴱ√RINI in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. rin (rind-) “year, circle” and ᴱQ. rinko “disc, orb, circle” (QL/80). It also had derivatives in the contemporaneous Gnomish Lexicon such as G. rin- “revolve, return, come back; do again” and G. rinc “circular; disc, rondure” (GL/65), but also strengthened forms like G. †drinn “ring, disc” and G. drintha- “to turn (tr.), twist” (GL/30). The root reappeared in The Etymologies of the 1930s with derivatives like ᴹQ. rinda/N. rhenn “circular” and ᴹQ. rinde/N. rhinn “circle” (Ety/RIN).