adesset
adesset is a Latin form of adsum, meaning “be present, be at hand; help”. It is the 3rd person singular imperfect active subjunctive.
Found 98 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.32.5: velut si coram adesset, horrerent, propterea quod reliquis tamen fugae facultas daretur, Sequanis vero, qui intra fines suos Ariovistum recepissent, quorum oppida omnia in potestate eius essent, omnes cruciatus essent perferendi.
All forms of adsum (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.