Lewis Short
instīgātĭo (noun F) : instigo
* An urging, stimulating, instigating, an incitement, instigation: auditorum,Auct. Her. 2, 30, 47: novercalibus instigationibus corrupti,Dig. 5, 2, 4: praedonum,Lact. 5, 19, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary