Lewis Short
(adverb) : per-saepe
* Very often, very frequently: quod persaepe fit,Cic. Lael. 20, 75: frons, oculi, voltus persaepe mentiuntur,id. Q. Fr. 1, 1, 5, § 15: persaepe velut qui Junonis sacra ferret,Hor. S. 1, 3, 10; id. A. P. 349.—In tmesi: per pol saepe peccas,Plaut. Cas. 2, 6, 18.
Charlton T. Lewis, Charles Short, A Latin Dictionary