excelsĭtas, ātis, f. [excelsus],
I loftiness , height.
I Lit.: montium, Plin. 2, 64, 64, § 160: harundinis, id. 16, 36, 66, § 167: lilii, id. 21, 5, 11, § 23.—
II Trop.: excelsitas animi et magnitudo, Cic. Off. 3, 5, 24.
excelsitās ātis, f excelsus, loftiness, ascendency : animi. ...
An Elementary Latin Dictionary