Definition: Nemesis refers to a person or force that inflicts retribution or vengeance. In a broader sense, it can mean an unbeatable rival or a source of downfall or defeat. The term is often used in literature and popular culture to describe an arch-enemy or a formidable opponent.
Etymology and Origin: The term ‘nemesis’ originates from Greek mythology, where Nemesis was the goddess of retribution, especially for hubris against the gods. The word comes from the Greek “νέμεσις” (nemesis), meaning ‘just indignation’, ‘retribution’. It entered the English language in the 16th century, keeping its mythological connotations of divine retribution and later expanding to its current meanings.