Lewis Short
(verb) : per-sisto, stĭti, 3
* To continue steadfastly, to persist (rare): si perstiteris ad corpus ea referre,Cic. Fin. 2, 33, 107 fin.: in impudentiā,Liv. 38, 14, 11: in luxuriā, Treb. Poll. Gall. 4, 2: in oratione persistens cum lacrymis,Vulg. Tob. 3, 11: divulsusque triens prohibet persistere bessem, to remain, permanere, Aus. Ecl. 1, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary