Xhuliana - Albanian form of Juliana. Juliana is a feminine form of the Roman 'cognomen' Julianus - cognomen being the third name given to a Roman citizen, initially it was a sort of nickname but eventually changed to serve as a way of identifying one branch of a family from another. Julianus is derived from the Roman surname Julian (which has since evolved into a first name) which means "of the gens Julia" or "a descendat of Julus". Julus or Iulus was supposed to be the son of the goddess Venus and one of the original inhabitants of Rome. The Julians were people who claimed descent from him. So Xhuliana would suggest someone who claimed descent from Julus/Iulus and by extension, from the goddess of love (Venus). Perhaps "descended from the offspring of the goddess of love" would be a good way of interpreting the name. Though I have not found what Julus or Iulus may have originally meant or referred to.
Yalda - Syriac, a form of Middle Aramaic, and the Nestorian Christian name for Christmas (it means "birth"), it is celebrated on the eve of the winter solstice, the longest night of the year.
Zosine - Greek