Persisto, persistis, pérstiti, pérstitum, pen. cor. persistere. Liu.To abide: co continue or tarp to the ende.Nisi in eadem impudentia persistas.Liu.Pertinacissimus fueris, si in eo perstiteris.Cic.
Lewis and Short: Latin dictionary
per-sisto, stĭti, 3, v. n., 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.