The name "Sumorok" is of a nickname type and originates from the appellative "sumorok," which means "twilight" or "dusk." The earliest mention of the name Sumorok dates back to 1495, referring to the boyar Dudenko Sumorok in the city of Vilna; and also in 1517, mentioning Pan Sumorok Ivanovich Radogoschanin.
