Lewis & Short

ā̆prīcĭtas, ātis, f. [apricus], the quality of apricus, sunniness, sunshine (only postAug.): regio apricitatis inclytae, Plin. 6, 16, 18, § 46: tepidi aëris, Just. 36, 3: diei, the clearness of the day, sunshine, Col. 7, 4, 5; 8, 15, 4.