From Greek 'zelotes' (zealous follower) — originally the Jewish anti-Roman militants of 1st-century Judaea, now any uncompromising fanatic.
A person who is fanatical and uncompromising in pursuit of their ideals.
From Greek 'zelotes' (zealous follower), from 'zelos' (zeal, ardent pursuit). Originally capitalized: the Zealots were a Jewish political movement in 1st-century Judaea that violently resisted Roman occupation. Their fortress at Masada and their mass suicide became legendary. Key roots