A word for “horned” in the Qenya Lexicon of the 1910s, an adjectival form of ᴱQ. taru “horn” (QL/57, 89). It was also mentioned in the contemporaneous Poetic and Mythological Words of Eldarissa (PME/57).
Early Quenya
taru
noun. horn
tarukko
noun. bull, ox
tarukka
adjective. horned
taruktarna
place name. Oxford
taruku
noun. ox
tarunko
noun. bull
yak(k)o
noun. ox
A noun for “ox” appearing in the Qenya Lexicon of the 1910s with variants yakko and yako, derived from the early root ᴱ√Ẏak “a head of cattle” (QL/105). In the contemporaneous Poetic and Mythological Words of Eldarissa Tolkien had yakk- “ox” (PME/105). In Early Qenya Word-lists of the 1920s, the word for “ox” was also yakko (PE16/132).
A noun in the Qenya Lexicon of the 1910s glossed “bull” with variants tarukko and tarunko, an elaboration of ᴱQ. taru “horn” (QL/89). In the contemporaneous Gnomish Lexicon, taruku- was given as the Qenya cognate of G. tarog “ox” (GL/69).