Qenya
yasse
adverb. there [yonder]; once upon a time, once upon a time; there [yonder]
yasse tintilar i eleni
*wherein the stars tremble
yassen elli atintillinar
*wherein the stars tremble
elli yas atintilar
*wherein the stars tremble
ya
pronoun. remote demonstrative
A correlative appearing in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/97, 111), a combination of ᴹQ. ya “yonder” and the locative suffix ᴹQ. -sse. In The Etymologies of the 1930s, it was based on ᴹQ. yá “ago” and translated as “once upon a time” (Ety/YA). In Tolkien’s later writings, ya was a relative pronoun and not a demonstrative, but was still connected with the past and so might still mean “once upon a time”.