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.
bo-
prefix. son of
bo-dhrauthodavros
proper name. bo-Dhrauthodavros
bon-
prefix. son of
bo(n)
noun. son
tuor bo-beleg
Tuor bo-Beleg
lúthien bo-delumaith
Lúthien son of Telumaith
rimion
masculine name. son of Rimion
go-
prefix. son of
duilin
masculine name. Swallow
arn
noun. son
drauthodavros
masculine name. Weary Forest
duil
noun. swallow
duilin(g)
noun. swallow
duilinc
noun. swallow
glindwil
noun. swallow
gon-
prefix. son of
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 noun in the Gnomish Lexicon of the 1910s for the bird “swallow” with variants glindwil and lindwil, a combination of G. glin “sound” and the suffixal form -wil of G. bil bird (GL/39, 54).