sin (1) a word either meaning "thus" (adverb) or "this" (as an independent word in the sentence, not modifying another word like sina does). Attested in the sentence sin quentë Quendingoldo Elendilenna, either *"this Pengolodh said to Elendil" or "thus spoke Pengolodh to Elendil" (PM:401). Patrick Wynne argues that sin is an adverb "thus" derived from the stem si- "this (by me)" (VT49:18)
Quenya
sina
this
sina
adjective. this
sin
thus
sinar
noun. today, today, [ᴹQ.] this morning
sinan
adverb. at present
sinar
adverb. today; this morning
sinanwië
noun. presence
A neologism coined by Arael in the “Neologism of the Day” (NotD) series on the Vinyë Lambengolmor Discord Server posted at 2023-05-30, a noun form of [ᴺQ.] sinanwa “present”.
sinanwa
adjective. present, in a particular place, existing or occurring now
sinapio
noun. mustard
A neologism for “mustard” coined by Helge Fauskanger in his NQNT (NQNT). Its second element is [ᴱQ.] pio “berry”, but I’m not sure what the first element is intended to be.
ista-
verb. to know
si
this
sië
thus
sië adv. "thus" (VT43:24, VT49:18)
sië
adverb. thus
sina demonstrative "this" (following its noun in our sole example: vanda sina "this oath"). (CO, VT49:18; in the latter source, sina _is called an adjective). _This word would, like Sindarin hen, be derived from primitive ¤sĭnā (VT49:34). Cf. sin #1.