Definition of Fenian
1 : a member of a legendary band of warriors defending Ireland in the second and third centuries a.d.
2 : a member of a secret 19th century Irish and Irish-American organization dedicated to the overthrow of British rule in Ireland
Origin of fenian
Fen- (probably in part from Middle Irish Féni freeholders, legendary settlers of Ireland, in part from Irish fiann, genitive singular féinne band of warriors) + -ian
First Known Use: 1816
Learn More about fenian
Britannica.com: Encyclopedia article about "Fenian"
Seen and Heard
What made you want to look up Fenian? Please tell us where you read or heard it (including the quote, if possible).