potuerint
potuerint is a Latin form of possum, meaning “be able, can”. It is the 3rd person plural perfect active subjunctive.
Found 65 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.40.7: Denique hos esse eosdem Germanos quibuscum saepe numero Helvetii congressi non solum in suis sed etiam in illorum finibus plerumque superarint, qui tamen pares esse nostro exercitui non potuerint.
All forms of possum (conjugation 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.