celsitudo
From LSJ
μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
celsĭtūdo: ĭnis, f. celsus.
I A lofty carriage of the body: corporis, Vell. 2, 94. —
II In late Lat., a title; your Highness, Cod. Th. 1, 6, 6; 9, 1, 15 al.