Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
sina
this; this fact (stated by me)
sinan elessar aran séra arkimbelesse
at present King Elessar is at Rivendell
sinar(yas)
noun/adverb. today, nowadays, this morning, this very day
sinar orome i·tauresse faralye
today O. is hunting in the forest
sine
pronoun. this (by me)
sin(an)
adverb. now, at present
sinárea
pronoun. *this old, this long lasting
The correlative sinárea appeared in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/108), a combination of ᴹQ. si “this” and an adjectival form of ᴹQ. are “day”.
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. sinaurëa “this old, this long lasting, (lit.) of that many days” using Q. aurë for “day”.
si
pronoun. this
sisse
pronoun. here
sie
pronoun. here
sinis(se)
adverb. here
sinome
adverb. here
sis
adverb. here
símane
adverb. here
símen
adverb. here
A correlative appearing as sinan or (archaic) †sin in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/109), a combination of ᴹQ. si “this” and ᴹQ. -n(an) “time”. Sinan was translated as “at present” in the Quenya Verbal System (QVS) of this same period (PE22/125).