Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. ācrĭtas, ātis, f. [2. acer], i. q. acritudo, Gell. 13, 3, 2: vis veritatis atque acritas, Att. ap. Non. 493, 14 (Rib. Trag. Rel. p. 196).
2. Ācrītās, ae, m., Ἀκρίτας, the most southerly promontory in Messenia, now Capo di Gallo, Mel. 2, 3, 8; 2, 7, 10; Plin. 4, 5, 7, § 15.