any of the Northmen who, under Rurik, established a dynasty in Russia in the 9th century.
2.
a member of the bodyguard (Varangian guard) of the Byzantine emperors, especially in the 11th and 12th centuries, made up of Northmen, Anglo-Saxons, and other northern Europeans.
one of the Scandinavian peoples who invaded and settled parts of Russia and Ukraine from the 8th to the 11th centuries, and who formed the bodyguard of the Byzantine emperor (Varangian Guard) in the late 10th and 11th centuries
—adj
2.
of or relating to the Varangians
[C18: from Medieval Latin Varangus, from Medieval Greek Barangos, from Old Norse Væringi, probably from vār pledge]
"one of the Northmen who founded a dynasty in Russia," 1788, from M.L. Varangus, from Byzantine Gk. Barangos, a name ult. (via Slavic) from O.N. væringi "a Scandinavian," prop. "a confederate," from var- "pledge, faith," related to O.E. wær "agreement, treaty, promise," O.H.G. wara "faithfulness"