Arabum
Arabum is a Latin form of Arabs, meaning “Arab, people of Arabia”. It is the genitive plural masculine noun or genitive plural feminine noun.
Found 37 times in the Latin texts on Socratos.
Where it is used
Cicero, Letters to his Friends 15.1.2: … astra posuisse Tybae, magnumque tumultum esse in provincia Syria excitatum. eodem die ab Iamblicho, phylarcho Arabum, quem homines opinantur bene sentire amicumque esse rei p. nostrae, litterae de isdem rebus mihi redditae sun …
All forms of Arabs (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.