Name Boris

There are multiple origins and translations for the name Boris:

1. East Slavic popular name (Russian Борис) means - "fighter". Derived from the word борьба [bor`ba] - "struggle, fight".

2. Derivative form of Arabic name Bariz - "prominent" or from Waris - "heir, inheritor".

Boris and Gleb (Russian Борис и Глеб), Christian names Roman and David, respectively, were the first Saints canonized in Kyivan Rus' after the Christianization of the country. Martyrs Boris and Gleb were the sons of the great Prince Vladimir.
According to the two 11th century Lives of Boris and Gleb (ascribed to Nestor the Chronicler and Jacob the Monk), they were children of Vladimir the Great, who liked them more than his other children. Both were murdered during the internecine wars of 1015-1019 and glorified (canonized) by the Orthodox church in Rus' in 1071. They were interred at the Vyshhorod Cathedral, which was reconsecrated in their name; many other Ukrainian and Russian churches were later named after them. Their feast day is observed on July 24.