probationibus
probationibus is a Latin form of probatio, meaning “approval; test, proof”. It is the ablative plural feminine noun or dative plural feminine noun.
Found 25 times in the Latin texts on Socratos.
Where it is used
Tacitus, Dialogus 1·37: … xperimur, quia saepe interrogat iudex, quando incipias, et ex interrogatione eius incipiendum est. frequenter probationibus et testibus silentium patronus indicit. unus inter haec dicenti aut alter adsistit, et res velut in solitudin …
All forms of probatio (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.