There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.

Early Quenya

-il

suffix. *(feminine) patronymic

Early Quenya [QL/103] Group: Eldamo. Published by

niqissea

adjective. snowy

A word for “snowy” in the Qenya Lexicon of the 1910s, an adjectival form of ᴱQ. niqis “snow” (QL/66).

Early Quenya [QL/056; QL/066] Group: Eldamo. Published by

-ni

suffix. feminine suffix

A common feminine suffix in the Qenya Lexicon of the 1910s in words like varyani “foreigner (fem.)”, probably a suffixal form of ᴱQ. nî “woman” (GL/60) and often paired with its masculine equivalent ᴱQ. -nu.

Early Quenya [QL/036; QL/039; QL/040; QL/049; QL/095; QL/100; QL/101] Group: Eldamo. Published by

-si

suffix. feminine suffix

A feminine suffix in several words from the Qenya Lexicon of the 1910s such as ᴱQ. felusi “witch” (QL/38) and ᴱQ. varitsi “foreigner (fem.)” (QL/100).

Early Quenya [QL/038; QL/100; QL/105] Group: Eldamo. Published by

-sse

suffix. feminine suffix

Early Quenya [QL/040; QL/055] Group: Eldamo. Published by

-tsi

suffix. feminine suffix

ar

noun. child

Early Quenya [PE13/160; PE16/135; PME/032; QL/032] Group: Eldamo. Published by

arne

noun. child

avestalis

noun. January

Early Quenya [QL/029; QL/036] Group: Eldamo. Published by

e-

verb. to be

Early Quenya [PE14/051; PE14/054; PE14/057; PE16/062; PE16/066; PE16/140; PE16/141; PE16/143] Group: Eldamo. Published by

fantur

proper name. Tu??il

Early Quenya [LT1/079; LT1A/Fanturi; LT1I/Fantur; QL/037; QL/038; QL/100] Group: Eldamo. Published by

hil(de)

noun. child

Early Quenya [GL/49; PME/040; QL/040] Group: Eldamo. Published by

il(l)aika

adjective. blunt

Early Quenya [QL/041] Group: Eldamo. Published by

il(l)oite

adjective. withered, dead

An adjective in the Qenya Lexicon of the 1910s glossed “withered, dead” (QL/41), an negation of ᴱQ. loite “fresh” (QL/52).

Early Quenya [QL/041] Group: Eldamo. Published by

il-

prefix. un-; negative prefix

Early Quenya [LT1A/Ilkorin; LT2A/Nínin-Udathriol; QL/041] Group: Eldamo. Published by

lunde niq(il)issea

proper name. January

A name for the month of January in the Qenya Lexicon from the 1910s (QL/56), a combination of lunde “month” and niqissea “snowy”.

Early Quenya [QL/056] Group: Eldamo. Published by

matl

noun. food

Early Quenya [QL/059] Group: Eldamo. Published by

matso

noun. food

Early Quenya [PE16/141] Group: Eldamo. Published by

niq(il)issea

adjective. *snowy

on(t)

noun. everything

Early Quenya [PE15/32; QL/070] Group: Eldamo. Published by

qen

noun. Elf

Early Quenya [GL/32; LRI/Qendi; LT1/235; LT1I/Qendi; PE13/099; PE13/146; PE14/009; QL/092; SM/013; SM/168] Group: Eldamo. Published by

qende

noun. Elf

ó-

verb. to be

Early Quenya [QL/069] Group: Eldamo. Published by

ú-

prefix. un-

Early Quenya [LT1A/Vána; QL/098] Group: Eldamo. Published by

úv-

prefix. un-

Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.