posset
posset is a Latin form of possum, meaning “be able, can”. It is the 3rd person singular imperfect active subjunctive.
Found 1,844 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.7.5: Tamen, ut spatium intercedere posset dum milites quos imperaverat convenirent, legatis respondit diem se ad deliberandum sumpturum: si quid vellent, ad Id. April. reverterentur.
Martial, Epigrammata 6.71.4: Posset ad Hectoreos sollicitare rogos,
Plautus, Rudens 2.3.390: qui suos parentis noscere possét: eam veretur
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.