Catilinarian
1 of 2adjective
Cat·i·li·nar·i·an
¦katᵊlə¦nerēən
: of, relating to, or like Catiline, who conspired against the government
specifically : conspiratorial
a Catilinarian existence
Catilinarian
2 of 2noun
"
plural -s
: conspirator
specifically : a participant in Catiline's conspiracy
Cicero had written to Pompey about the suppression of the Catilinarians 
J. H. Taylor
J. H. Taylor 
Word History
Etymology
Adjective
Latin Catilinarius Catilinarian (from Lucius Sergius Catilina (Catiline) †62 b.c. Roman politician) + English -an