sedition Look up sedition at Dictionary.com
late 14c., "rebellion," from O.Fr. sedicion, from L. seditionem (nom. seditio) "civil disorder, dissention," lit. "a going apart, separation," from se- "apart" (see secret) + itio "a going," from pp. of ire "to go." Meaning "conduct or language inciting to rebellion against a lawful government" is from 1838.