The usual word for “and” in the 1910s was ᴱQ. ya(n) (PE15/69, VT40/8). It was derived from the early root ᴱ√YA (or possibly ᴱ√(D)YṆTṆ) in the Qenya Lexicon of the 1910s (QL/104-105). In his later writings, the usual word for “and” was Q. ar, but something like ya(n) survived in the “dual” conjunction yo “both ... and”.
Early Quenya
nea
adverb. it is, yes
har(e)
adverb. near
harwalin
place name. Near the Valar
avanwa
adjective. going, passing, nearly gone
tange
adjective. close, near
rato
adverb. soon
ya(n)
conjunction. and
alluva
adjective. clean
An adjective for “clean” in the Qenya Lexicon of the 1910s under the early root ᴱ√ALU “cleanse, dress” (QL/30).
e-
verb. to be
elben
noun. heart
elwen
noun. heart
A word appearing as ᴱQ. Elben “heart” in the Name-list to the Fall of Gondolin of the 1910s (LT2/202; PE15/23), but as ᴱQ. Elwen “heart” in the contemporaneous Qenya Lexicon under the early root ᴱ√LEFE (QL/35, 52). These words were connected to the character G. Elfrith who vanished from later versions of the legendarium.
eru
adverb. once
erus(ta)
noun/adjective. outside
hon
noun. heart
honde
noun. heart
hondo
noun. heart
hya
preposition. by
isqalea
adjective. clever
kalainis
proper name. May
A name for the month of May in the Qenya Lexicon from the 1910s (QL/44), an abstract noun formation from kalaine “serenity, serene”.
londa
noun. heart
lotession
proper name. May
lunde kalaina
proper name. May
A name for the month of May in the Qenya Lexicon from the 1910s (QL/56), a combination of lunde “month” and kalain(e)a “serene” similar to another name of this month: Kalainis.
lunde lótea
proper name. May
sauna
adjective. clean
soina
adjective. clean
An adjective in the Qenya Lexicon of the 1910s glossed “clean” based on the early root ᴱ√SOVO or ᴱ√SOW̯O (QL/86), perhaps from ✱sowinē with óu̯i > oi (PE12/13).
ó-
verb. to be
An adjective appearing as ᴱQ. avanwa “going, passing, nearly gone” in the Qenya Lexicon of the 1910s under the early root ᴱ√AVA “go away, depart, leave” (QL/33). It seems to have a present-tense sense, that is “✱currently going/passing”, as opposed to contemporaneous ᴱQ. vanwa with a past-tense sense: “gone, past, over, lost” (QL/99).
Neo-Quenya: For purposes of Neo-Quenya, I’d simply use the active participle of the later verb auta- “go away, pass away, departing”, as in ᴺQ. autaila “going away, passing away”.