zealot

noun

1. a person who shows zeal.
2. an excessively zealous person; fanatic.
3. (initial capital letter) a member of a radical, warlike, ardently patriotic group of Jews in Judea, particularly prominent from a.d. 69 to 81, advocating the violent overthrow of Roman rule and vigorously resisting the efforts of the Romans and their supporters to heathenize the Jews.

noun

1. an immoderate, fanatical, or extremely zealous adherent to a cause, esp a religious one

noun

1. any of the members of an extreme Jewish sect or political party that resisted all aspects of Roman rule in Palestine in the 1st century ad

n.

c.1300, “member of a militant 1st century Jewish sect which fiercely resisted the Romans in Palestine,” from Late Latin Zelotes, from Greek zelotes “one who is a zealous follower,” from zeloun “to be zealous,” from zelos “zeal” (see zeal). Extended sense of “a fanatical enthusiast” first recorded 1630s.