τοῖσι ἐμφανέσι τὰ μὴ γινωσκόμενα τεκμαιρόμενος → judge of the unknown by the known
prae-cŭpĭdus: a, um, adj.,I very desirous or fond of any thing: pretiosae supellectilis praecupidus, Suet. Aug. 70.