certas

certas is a Latin form of certus, meaning “certain, sure; fixed”. It is the accusative plural feminine adjective.

Found 39 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Civili 1.17: … atorum atque equitum Romanorum in periculum esse venturum. Interim suos cohortatus tormenta in muris disponit certasque cuique partes ad custodiam urbis attribuit; militibus in contione agros ex suis possessionibus pollicetur, …

All forms of certus (declension table)

Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.