"Kirimvose se jiōrna!"

Translation: Thank you and welcome!

[sophias123s]

Why is it "se jiōrna" and not just "jiōrnā"

[Cailean_Seoilidh]

I think “se” is used when talking about ideas instead of people and objects.

[Dedalvs]

Se connects clauses; conjunctive lengthening is only used to conjoin nominal or adjectival phrases.