√RIG root. “wreathe, twine, wind about; wreath, garland, crown”
This root first appeared as unglossed ᴹ√RIG in The Etymologies of the 1930s with derivatives like ᴹQ. ríe/N. rhî “crown” and ᴹQ. rína/N. rhîn “crowned” (Ety/RIG). The root was then altered to ᴹ√RIƷ (EtyAC/RĪ). A similar root √RIK with derivation ✶riknā >> Q. rína (all unglossed) appeared in the first layer of composition for the Outline of Phonology from the early 1950s, but this section was revised in green ink around 1970 and the root did not appear in the revisions (PE19/85-86 and note #79).
The root √RIG appeared a number of times in Tolkien’s writings from the 1950s and 60s, variously glossed “wreath, garland, crown” (PE17/59), “twine” (PE17/182), and “twine, wreathe” (PM/347), but √RIƷ “wind about, wreathe” also appeared in notes on the names of Galadriel and Celeborn from 1968 (NM/349, 353). Thus it seems Tolkien vacillated between √RIG and √RIƷ with a brief aside to √RIK in the early 1950s.
References ✧ NM/349, 353; PE17/59, 158, 182; PE19/86; PM/347; SA/kal
ᴹ√RIG root. “*crown”
References ✧ Ety/RIG, TĀ; EtyAC/RĪ, RIG