Sinn Feinism
noun
Sinn Fein·ism
¦shinˈfāˌnizəm
plural -s
1
: the doctrines, policies, or practices of Sinn Fein
2
: a movement based on the doctrines of Sinn Fein
Word History
Etymology
Sinn Fein, national Irish society founded about 1905 (from Irish Gaelic sinn fēin we ourselves) + English -ism