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.

Qenya 

il-

prefix. no, not

Qenya [Ety/LA; EtyAC/LA] Group: Eldamo. Published by

ilqa

all the, the whole (situation); everything, all

An adjective or pronoun for “all the, the whole” appearing in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 as a combination of ᴹQ. il(u)- “the whole” and ᴹQ. qa- “each, every, all” (PE23/106). It also functioned as a prefix of similar meaning (PE23/101). As an adjective Tolkien specified ilqa was used with singular nouns and always without the article, as in ᴹQ. ilqa nóre = “all [the] land” (PE23/106). It could be used pronominally to mean “the whole (situation)” (PE23/105).

Conceptual Development: In drafts of DRC, ilqa meant “every, each” before being revised to qa(qe) (PE23/101 note #36). In DRC, primitive ᴹ√kwā- meant “all”, possibly related to ᴹ√KWAT “fill” (PE23/101). However, in The Etymologies of the 1930s ilqa was instead “everything”, because in that document ᴹ√KWA meant “something”, so that il-qa = “✱all things” (Ety/IL; EtyAC/KWA). The word ilqa was translated as “all” (pronoun) in ᴹQ. Fíriel’s Song, also from the 1930s (LR/72).

Neo-Quenya: In Tolkien’s later writings, IL was “all” (VT48/25) and √KWA was translated “whole, complete, all” (VT47/7, 17), but I think ilqua might still be used for “all the, the whole” with a reversal of the meaning of its elements.

Qenya [Ety/IL; EtyAC/KWA; LR/072; PE22/119; PE23/101; PE23/105; PE23/106; PE23/111] Group: Eldamo. Published by

il(u)-

prefix. all the, the whole, the entire; all, any

nilmo

noun. friend

-el

suffix. friend

-ser

suffix. friend

aran

noun. child

This word first appeared as ᴱQ. ar (arn-) “child” in the Qenya Lexicon of the 1910s (QL/32) and its stem form arn- appeared in the Poetic and Mythological Words of Eldarissa (PME/32). The word reappeared in Early Qenya Word-lists of the 1920s (PE16/135), but in the Early Noldorin Dictionary the Qenya form was given as arne. In the Declension of Nouns from the early 1930s, the word appeared as ᴹQ. aran (arn-) “child” (PE21/19), but there is no sign of it from this point forward, probably displaced by Q. aran “king”.

elda

noun. Elf

Qenya [Ety/ELED; EtyAC/EDE; LR/072; LR/169; LR/181; LR/197; LR/212; LR/218; LRI/Eldar; PE18/024; PE21/57; PE22/124; PE22/125; PE23/083; PE23/099; PE23/105; PE23/106; SD/401; SDI2/Eldar; SDI2/Eledâi; SDI2/Nimrî; SMI/Eldar; VT27/07] Group: Eldamo. Published by

helde

noun. friend

heldo

noun. friend

helmo

noun. friend

adverb. no, not

Qenya [Ety/LA; EtyAC/LA; PE22/119; PE22/120; PE22/122; PE23/074; PE23/078; PE23/099; PE23/103; PE23/104; PE23/107; PE23/111] Group: Eldamo. Published by

málo

noun. friend

Qenya [Ety/MEL; PE18/046] Group: Eldamo. Published by

nande

noun. harp

Qenya [Ety/ÑGAN; EtyAC/ÑGAN] Group: Eldamo. Published by

ná-

verb. to be

Qenya [Ety/N²; PE22/096] Group: Eldamo. Published by

qen

noun. Elf

Qenya [PE21/19; PE21/25] Group: Eldamo. Published by

qende

noun. Elf

Qenya [Ety/KWEN(ED); LR/119; LR/168; LR/212; LRI/Qendi; MRI/Quendi; PE18/023; PE21/69; SM/085; SM/086; SMI/Quendi; TII/Qendi] Group: Eldamo. Published by

seldo

noun. child, child [m.], *boy

A word for a (male) child in The Etymologies of the 1930s added to its entry when the meaning of the root ᴹ√SEL-D was changed from “daughter” to “child” (Ety/SEL-D). It was written above its feminine equivalent ᴹQ. selde and an apparently neuter form ᴹQ. selda was written to the right, making seldo likely the masculine form as suggested by Carl Hostetter and Patrick Wynne (EtyAC/SEL-D), hence = “✱boy”.

Qenya [Ety/SEL-D; EtyAC/SEL-D] Group: Eldamo. Published by

sermo

noun. friend

seron

noun. friend

sondo

noun. friend

ye-

verb. to be

Qenya [LR/072; PE22/011; PE22/107; PE22/115; PE22/117; PE22/119; PE22/120; PE22/123; PE23/097; PE23/104] Group: Eldamo. Published by

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.