Jessie Payne Margoliouth here continues the work of her father’s Thesaurus Syriacus, including new words and meanings that had been discovered after publication of the Thesaurus. The Supplement gives definitions in English (not Latin).
Composed in three parts, the book chronicles a critical period in the Syriac Orthodox Church, and represents the greatest literary work by the author. It includes grammatical, historical, and geographical notes in English and German.