From Proto-Slavic *bergъ ("bank, shore"), cognate with Old High German *berg ("mountain, hill") and Gothic *bairgahei ("hill country"). The shared root points to an ancient Indo-European sense of elevated or boundary land — a shore being the raised edge where land meets water.

Russia's relationship with its берега (shores) is deeply embedded in culture and literature. The Volga riverbank, in particular, is an iconic image in folk songs and 19th-century painting — most famously in Repin's "Barge Haulers on the Volga." The phrase "на берегу" (on the shore) appears constantly in Russian poetry as a metaphor for a threshold or moment of decision. Note also the verb беречь ("to protect, to take care of") — a coincidental near-homophone that learners sometimes confuse with this noun.