ζηλωτής

Zealot comes from Latin zelotes, from Greek ζηλωτής (zelotes, 'one who is zealous'), from ζῆλος (zelos, 'zeal, ardor, jealousy'). But the word's specific historical meaning comes from the Zealots — the Jewish political faction that led armed resistance against Roman occupation of Judea in the 1st century CE. The Hebrew term was קנאים (qanna'im, 'the zealous ones'), reflecting their claim to be zealous for God and the Torah.

The Zealots emerged as a distinct movement around 6 CE, when Judas of Galilee led a revolt against the Roman census and taxation. Their theology was simple and absolute: God alone was the ruler of Israel, and paying tribute to Rome was idolatry. The most radical faction, the Sicarii (dagger-men), carried concealed blades and assassinated Roman collaborators in crowded marketplaces. For decades, the Zealots waged guerrilla warfare against the most powerful empire on Earth.

The movement reached its climax in the Great Jewish Revolt of 66-73 CE. The Zealots seized Jerusalem, held it for four years, and fought each other nearly as fiercely as they fought Rome. When the Romans finally breached the walls in 70 CE, they destroyed the Second Temple. The last Zealot stronghold, Masada, fell in 73 CE — according to Josephus, the 960 defenders chose mass suicide over surrender. The Zealots' cause died with them; their name lived on.

Greek ζῆλος entered Latin as zelus and then passed into English as 'zeal' by the 1300s. 'Zealot' followed in the 1530s, initially referring to the historical Jewish faction. But by the 1600s, the word had generalized: any person of excessive, uncompromising devotion to a cause was a zealot. The fighters of Masada became a metaphor for anyone who will not bend.