Khors is a Slavic god of uncertain functions mentioned since the 12th century. Generally interpreted as a sun god, sometimes as a moon god. The meaning of the theonym is also unknown: most often his name has been combined with the Iranian word for sun, such as the Persian xoršid, or the Ossetian xor, but modern linguists strongly criticize such an etymology, and other native etymologies are proposed instead. Sources Khors is the most frequently mentioned Slavic god, after Perun. He first appears in the Primary Chronicle letopis along with other gods to whom Vladimir the Great erected statues: The second source mentioning the god is The Tale of Igor's Campaign: "Prince Vseslav was a judge for his subjects, he distributed cities among princes, but by night he ran like a wolf, from Kiev he ran to Tmutarakan, before the cock crowed, as a wolf he ran along the road of the great Khors." God is also mentioned in the apocryphal work Sermon and Apocalypse of the Holy Apostles, which mentions Perun and Khors as old men, and Khors is credited with real life in Cyprus. Khors also appears in the apocryphal text Conversation of the Three Saints, in which St. Basil, St. Gregory the Theologian, and St. John Chrysostom converse. St. John asks: "What was thunder made from?", St. Basil replies: "There are two angels of thunder. For this, the ancient Greek Perun, Khors is Jewish. And there are two angels of lightning". This text combines Slavic, Christian, and Bogomil traditions. He also occurs in other letopis-dependent sources. In proper nouns Mikhail Vasil'yev cited a number of hydronyms from the Novgorod-Severian region (e.g., Khorsovo swamp, Khorsov reservoir) from the 16th-18th centuries, toponyms in Volhynia from the 10th-12th centuries, or Hŭrsovo in Bulgaria, to the right of the Danube. Andrey Beskov notes that in Borova region (Ukraine), not far from the village of , there was the village of Horsivka, which is now under the Oskol reservoir. Significantly, among the inhabitants of this village were bearers of the surname Khors. God was also to be preserved in the Old Serbian name Хьрсь, Old Bulgarian Хръсъ, Serbian Хрс, Hrs, Хрсовик, Hrsovik, Old East Slavic Хорсъ in analogy to the Polish name Dadźbóg, from the god Dazhbog. It is also possible that he was preserved in the Old Czech name Chorúš. It has been proposed that the Serbian names should be regarded