Lewis Short
princĭpor, āri
* V. dep. a. [princeps], to rule (eccl. Lat.).
* Lit.: principari in nationes,Lact. 14, 13, 19: prolem ... principibus principantem,Sid. Carm. 9, 47; 23, 90.
* Transf.: sanguis in nostro corpore principatur,Aug. Prophet. 6.
Charlton T. Lewis, Charles Short, A Latin Dictionary