sicarius
noun
si·car·i·us
sə̇ˈka(a)rēəs
plural sicarii
-ēˌī
often capitalized
: one of a party of Zealots and terrorists resorting to murder in attempting to expel the Romans from ancient Palestine a.d. 52–60
Word History
Etymology
Latin, assassin, murderer, from sica dagger; akin to Latin secare to cut