Navin i vilma virya quanda Cemendë silumë, lá eryavë nórelyassë.

Nán quanda tanca *vilwiste viryuva arringa rato, sina ane er senna ar acca arinya coire.

:( It looks like quenya is not quite ready for communication. I understood only the general sense of the phrase. "Senna" is obscure, isn't "sinta" more widely used? Can we really use "ane" without endings?

In what way is senna "obscure"? It is clearly glossed in PE17, is a LoTR-era word; of course it does not invalidate sinta, it is a variant, but in my opinion eminently usable. As for ane, if na can be used without a pronominal ending, I can't see how ane- could not be, like any other verb.
What I wanted to express was "I am quite sure the weather will turn colder soon, this was only a short an too early spring."

I really didn't want to sound offensive, Tamas. I know you 've been studying the Language ever before I knew anything about it. Maybe, for poetic exercises, senna and anë can be quite all right, but in a plain speech I perceive senna as 3.sn.anim. pers.pronoun in Allative. I'm happy I've got the meaning of the whole phrase correctly. Anë is not attested in VT49:28.

Well every language is choq full of homonyms, Quenya has her measure of them, too. I think in context it would usually be clear if senna is an adjective or a pronoun.
You were not offensive, this is great discussion!

Correcting myself: indeed né would have been the correct choice instead of an endingless *ane-. Thanks for making me think!

Well, they aren't even homonyms. In tengwar, "to him" is written with silme, while "short" -- with thúle.

Actually sinta has a homonym too: the verb sinta- 'fade' (both with s- < th-).

Quite true, +Björn Fromén !
As for the suitability of (Neo)Quenya for communication, well compared to what vocabulary we had available back in around 2000-2001 when I started studying Quenya, what we have today is stunning...

+Björn Fromén that's true. But we shouldn't be afraid of homonyms, since all languages have them!

+Ицхак Пензев I agree, that's why I have no problem with the homonymy of senna. But generally I think we should avoid new homonymy when making neologisms.