Pisonis

Pisonis is a Latin form of piso, meaning “Piso, family name in the Calpurnian clan (e.g. L. Calpurnius Piso)”. It is the genitive singular masculine noun.

Found 72 times in the Latin texts on Socratos.

Where it is used

Caesar, De Bello Gallico 1.12.7: Qua in re Caesar non solum publicas, sed etiam privatas iniurias ultus est, quod eius soceri L. Pisonis avum, L. Pisonem legatum, Tigurini eodem proelio quo Cassium interfecerant.

All forms of piso (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.