As the basis for “father” words, √AT and its extended form √ATAR date all the way back to Tolkien’s earliest ideas. The root itself did not explicitly appear in the Qenya or Gnomish Lexicons of the 1910s, but forms like ᴱQ. atar, G. †ador “father” indicate its presence (QL/33; GL/17). The root ᴹ√ATA “father” did appear in The Etymologies of the 1930s with derivatives ᴹQ. atar, N. adar (Ety/ATA) and the base √AT(AR) “father” was mentioned again in late 1960s notes on Eldarin Hands, Fingers and Numerals (VT48/19). In this late period, the Elvish words for “father” remained Q. atar and S. adar (PM/324).
Primitive elvish
-nyā
pronoun. my
am
root. mother
amal
noun. mother
amas
noun. mother
amma
noun. mother
amme
noun. mother
at(ar)
root. father
atar
noun. father
em
root. mother
emel
noun. mother
emer
noun. mother
inni
pronoun. I (emphatic)
nik
root. small
One of various roots for “small” Tolkien used in his later writings. The root √NIK “small” first appeared in notes on Eldarin Hands, Fingers and Numerals from the late 1960s (VT47/26; VT48/18), but was connected to the diminutive suffix ✶-i(n)ki which had a much longer conceptual history. One of the earliest known diminutive suffix was ᴱQ. -íne(a) in the Qenya Lexicon of the 1910s from the root ᴱ√INI “small” (QL/42), which might be a precursor to √NIK; these suffixes reappeared in the Early Qenya Grammar of the 1920s (PE14/49, 81). In the Gnomish Grammar of the 1910s, the word G. inc “small” was used as the basis for the “diminutive superlative” -inci (PE11/16).
In the Qenya Lexicon, Tolkien connected ᴱ√INI “small” to the root ᴱ√MINI of similar meaning (QL/42, 61). There are no signs of ᴱ√MINI “small” in the contemporaneous Gnomish Lexicon, but the word G. migin “little” (GL/57) hints at a (hypothetical) variant root ✱ᴱ√MIKI. Further support for ✱ᴱ√MIKI can be found in other diminutive forms in the Early Qenya Grammar of the 1920s such as prefixal diminutive ᴱQ. mike- along adverbial ᴱQ. mike “little” (QL/48, 81), the latter appearing with the gloss “a bit” in the English-Qenya Dictionary from this period (PE15/70) along with other similar words in both the dictionary and the grammar. This ✱ᴱ√MIKI might be another precursor to √NIK. An early hint at √NIK itself might appear in the word ᴹQ. nikse “minnow, little fish” from the Declension of Nouns from the early 1930s (PE21/27).
In Noldorin and Sindarin, the primary diminutive suffix became -eg, which was connected to the Common Eldarin suffix -iki elsewhere in notes on hands and fingers (VT47/14 note #21). In the notes where √NIK “small” appeared in the late 1960s, Tolkien gave the primitive diminutive as -inkĭ along with variants ikki, -iksi, -si, -ensi, -ki.
One of the main competing roots for “small” was ᴹ√PIK [see the entry for √PI(N)], itself with a lengthy conceptual history. The shift of pitya >> nitya “little” in the father name of Amrod from the late 1960s may represent a replacement of √PIK by √NIK (PM/365), but I think it is likelier the two roots coexisted with slightly different meanings, as was the case for their earlier precursors. In the notes from the late 1960s, √NIK was also contrasted with √NIP “small (usually with connotation of weakness)” (VT48/18), from which the word S. niben “petty” was derived, as in S. Nogoth Niben (WJ/388).
Neo-Eldarin: For purposes of Neo-Eldarin, I would assume √NIK meant “small” in a neutral sense, √PIK “tiny” (along with variants √PĪ and √PIN) and √NIP “small and weak”. I would use these as the major Eldarin roots for “small” words, along with a number of other more specialized roots.
nimpĭ
adjective. small
ninkĭ
adjective. small
yenā
adjective. female
For most of Tolkien’s life, the Primitive Elvish root for “mother” was √AM. This began with the Qenya Lexicon of the 1910s, where Tolkien gave the root as ᴱ√AMA (QL/30). In The Etymologies of the 1930s it was ᴹ√AM with derivatives ᴹQ. amil and (archaic) N. emil “mother” (Ety/AM¹). In Quenya prayers of the 1950s, the word for mother was Q. Amille. In the last few years of his life, however, Tolkien toyed with the notion of changing this root to √EM. In notes associated with Eldarinwe Leperi are Notessi written in the late 1960s, Tolkien first gave the root as am, but then wrote em next to it with a question mark, along with several new em-derivatives (VT48/19 note #16). The Q. affectionate word emme for “mommy” appeared in the main article, indicating Tolkien did, in fact, adopt this new root, at least for some period of time.
Neo-Eldarin: For purposes of Neo-Quenya writing, I personally prefer to ignore this late change to the root for “mother” and stick with the √AM-forms Tolkien used for most of his life. However, the √AM-forms were less stable in the Sindarin branch of the languages, so I’d use √EM-forms like S. emel and emig, and would assume √AM and √EM were variants of the root, as they were on VT48/19 (see above).