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.
ar
preposition. at; to, towards
ar
conjunction. and, too, besides
ar-
prefix. beside, along with, compared with
redhin gedweth’ ar gadwethu
*related of kinship and marriage
alch(ar)
noun. shrine, temple
gân ar gantha
*young and old, (lit.) young and adult
hûn ar hû
between the dog and his bone
i·fesc ar i·dusc
a red rag to a bull, (i.e.) the irritating to the irritable
saroth
noun. sea
tusc ar fesc
*irritable and irritating
bâb
noun. father
ûthi
noun. outside
ador Archaic
noun. father
tûr
noun. king
danuin
masculine name. Day
dâ
adjective. high
dân
noun. day
le Archaic
preposition. and
mandra
adjective. noble
nathon
noun. father
tîr
noun. king
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.
A word for “father” in the Gnomish Lexicon Slips (PE13/111). In the Gnomish Lexicon of the 1910s itself, G. babi or baba was “mummy, mamma” (GL/21, 57). As pointed out by Gilson, Welden, Hostetter and Wynne, there is a complementary change of {nân “father” >>} G. nân “mother” elsewhere in the Gnomish Lexicon Slips (PE13/115).