Poenis
Poenis is a Latin form of poena, meaning “penalty, punishment; (poenas dare) pay the penalty, be punished”. It is the ablative plural feminine noun or dative plural feminine noun.
Found 149 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.1.6: … e hoc quidem mirandum videtur; multa enim et in deos et in homines impie nefarieque commisit, quorum scelerum poenis agitatur et a mente consilioque deducitur.
All forms of poena (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.