Examples from the Web for secessionism
Secessionism splits people into parts, artificially separating the voting booth from the synagogue pew.
For, be it remembered, there was civil war on the Ohio long before Fort Sumter belched its defiance to secessionism.Historic Highways of America (Vol. 9)|Archer Butler Hulbert
Word Origin and History for secessionism
1860, first recorded in U.S. context, from secession + -ist (colloquial short form secesh, noun and adjective, is attested from 1861); the earlier noun had been seceder, but this had religious overtones, especially in reference to Scottish Church history.