A negative root first mentioned as ᴱ√Ū “not” in the Qenya Lexicon of the 1910s with various derivatives in Qenya and Gnomish (QL/96, 98; GL/73). In The Etymologies of the 1930s it became {ᴹ√ƷŪ >>} ᴹ√GŪ or ᴹ√MŪ “no, not”, and in this document had “evil connotations” (Ety/GŪ, MŪ; EtyAC/ƷŪ), but in later writings it again became √Ū (PE17/143; PE22/153). For much of its existence this root was in competition with invertible √LA for negation, but in notes from 1959 Tolkien decided √Ū was the only negative root (PE17/143), though √LA was briefly restored in 1969 (PE22/160) only to be abandoned again (VT44/4). For a full history of Tolkien’s shifting conceptions of negation in Elvish, see the Quenya entry on the negative.
Primitive elvish
neg
root. ‽ooze, drip, ooze, drip; *honey
negdē
noun. exudation
ū
root. denial of fact, privation, negative element, denial of fact, privation, negative element, [ᴱ√] not
la
root. no, not; negative; not to be
An invertible root, √LA or √ALA, used for negation. Its earliest iteration was as the primitive negative prefix ᴱ✶ḷ- from the 1910s (GL/50; PE12/11; QL/97). Its first appearance as ᴹ√LA “no, not” was in The Etymologies of the 1930s (Ety/LA), and it regularly appeared in documents from the 1930s, 40s and 50s. Tolkien then abandoned this form of negation in 1959 (PE17/143), but restored it again around 1969 (PE22/160) only to abandon it again shortly after (VT44/4). For a full history of Tolkien’s shifting conceptions of negation in Elvish, see the Quenya entry on the negative.
ala
root. no, not; negative; not to be
lā-
verb. to not be
This root served as the basis for honey words and (in earlier writings) for bee words. Its earliest form is unglossed ᴱ√NEHE in the Qenya Lexicon of the 1910s where it had derivatives like ᴱQ. nekte “honey” and ᴱQ. nier “honey bee” (QL/65). In the contemporaneous Gnomish Lexicon the root was given as neg- with derivatives like G. neglis “honey” and G. nio “bee” < ᴱ✶nēgu, with another (feminine?) form nios (GL/59-60).
The root ᴹ√NEG reappeared unglossed in The Etymologies of the 1930s with derivatives like ᴹQ. nehte and N. nîdh “honeycomb” (EtyAC/NEG). It appeared in the Outline of Phonology from the early 1950s with the gloss “ooze, drip” (marked by Tolkien with a “?”) and derivatives Q. nehtë/T. nettë “honey” and S. nîdh “juice” (PE19/91).