Lewis Short
(adjective) : jūris-pĕrītus or jūrĕ-pĕrītus (freq. also separately), i, m. 2. jus-peritus
* Skilled or learned in the law (class.): Fabius Pictor et juris et litterarum et antiquitatis bene peritus,Cic. Brut. 21, 81: Apollo,Juv. 1, 128.—Comp.: Quis jure peritior?Cic. Clu. 38, 108.—Sup.: eloquentium jurisperitissimus Crassus, jurisperitorum eloquentissimus Scaevola,Cic. Brut. 39, 145.
Charlton T. Lewis, Charles Short, A Latin Dictionary