Russia

The word 'Russia' entered English via Medieval Latin 'Russia,' which came from the Old East Slavic 'Rusĭ' (Русь). The Latin form appears in Western chronicles as early as the 11th century, describing lands ruled by princes descended from Varangian Norse settlers. Scribes writing in Latin simply Latinized the Slavic name they heard from Byzantine sources.

The Slavic 'Rusĭ' most likely derives from Old Norse 'Róðr' or 'Róðsmenn,' meaning 'the men who row' or 'the rowers.' These were the Varangian Norse traders who moved southward from Scandinavia through the river systems of eastern Europe in the 9th century. The Byzantine Greeks recorded contact with a people called 'Rhos' (Ῥώς) as early as 839 CE, in the Annals of St. Bertin. Within a generation, these Norse settlers had founded the Kievan polity that would bear their name.

The shift from 'Rusĭ' to 'Russia' followed the standard Medieval Latin practice of adding the suffix '-ia' to denote a territory. Western chroniclers encountered the name through Byzantine sources and trade contacts, gradually adopting the Latinized form. By the time Adam of Bremen wrote his 'Gesta Hammaburgensis' in the 1070s, 'Russia' was the settled Latin name for the lands east of Poland.

When Ivan III unified the northern principalities between 1462 and 1505, he styled himself 'gosudar vsya Rusi' (sovereign of all Rus'). Ivan IV, crowned as the first formal tsar in 1547, consolidated usage of the Greek-influenced form 'Rossiya' (Ρωσσία). Peter the Great then formalized the realm as 'Rossiyskaya Imperiya' (Russian Empire) in 1721, and the English 'Russia' has tracked the Latin root ever since.