addiderat
addiderat is a Latin form of addo, meaning “add”. It is the 3rd person singular pluperfect active indicative.
Found 40 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Civili 1.39: … issimo quoque evocato, huc optimi generis hominum ex Aquitanis montanisque, qui Galliam provinciam attingunt, addiderat. Audierat Pompeium per Mauritaniam eum legionibus iter in Hispaniam facere confestimque esse venturum. Simul …
Silius Italicus, Punica 8.613: Addiderat ter mille uiros, in Marte sagittae
All forms of addo (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.