To simulate; pretend.
To invent or imagine.
FEIGNEDLY.
In its early days the Irish party had been, what Sinn Fein is now, a party of the young. – John Redmond's Last Years by Stephen Gwynn
I have therefore hesitated about telling just how some members of the Sinn Fein Party treated our men. – The Victory At Sea by William Sowden Sims Burton J. Hendrick