nationum
nationum is a Latin form of natio, meaning “tribe, people, nation; birth”. It is the genitive plural feminine noun.
Found 57 times in the Latin texts on Socratos.
Where it is used
Cicero, In C. Verrem 2.2.2: … genter habere debetis, tum praecipue Siciliae, iudices, plurimis iustissimisque de causis, primum quod omnium nationum exterarum princeps Sicilia se ad amicitiam fidemque populi Romani adplicavit. prima omnium, id quod ornamentu …
All forms of natio (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.