principibus
principibus is a Latin form of princeps, meaning “leading man, chief; first; emperor”. It is the dative plural masculine noun or ablative plural masculine adjective.
Found 187 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.16.5: Ubi se diutius duci intellexit et diem instare quo die frumentum militibus metiri oporteret, convocatis eorum principibus, quorum magnam copiam in castris habebat, in his Diviciaco et Lisco, qui summo magistratui praeerat, quem ver …
All forms of princeps (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.