μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
prae-lautus: a, um, adj.,
I very elegant, sumptuous, or luxurious (post-Aug.): homines, Suet. Ner. 30; id. Vitell. 2.
prælautus,¹⁵ a, um, fastueux : Suet. Nero 30.