per-stŭdĭōsus, a, um, adj.,
very desirous , very fond of any thing: musicorum, Cic. Tusc. 5, 22, 63: litterarum Graecarum, id. Sen. 1 fin.—Adv. : perstŭdĭōsē , very eagerly , very fondly : audire aliquem, Cic. Brut. 56, 207.
per-studiōsus adj., very desirous, extremely fond: musicorum: litterarum. ...
An Elementary Latin Dictionary