Lewis Short
(adverb) : per-quam, (also, less correctly, written separately, per quam, v. per
* Fin.), as much as possible, extremely, exceedingly: illorum mores perquam meditate tenes,Plaut. Bacch. 3, 6, 16: perquam indignis modis,id. Rud. 3, 3, 9: perquam breviter,Cic. de Or. 2, 49, 201: perquam modica,Plin. Pan. 60: perquam velim scire,id. Ep. 7, 27, 1: parentes perquam infelicissimi,Inscr. Murat. 953, 2: sagax,Amm. 14, 5, 6. —In tmesi: per pol quam paucos reperias,Ter. Hec. 1, 1, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary