Title: Dirāsāh lughawīyah fī arājīz Ruʼbah wa-al-ʻAjjāj
Subjects: Arabic poetry, Dictionaries, Glossaries, Language
People: Ruʾbah ibn al-ʻAjjāj (d. 762?), ʻAjjāj, ʻAbd Allāh ibn Ruʾbah (ca. 646-ca. 715)
Time periods: 622-750