Ruinart collected the best Acta of the martyrs in his Acta martyrum sincera (Paris, 1689).
Stephen, by his share in the publication of the works of St. Ephrem, and by the Acta Martyrum Orientalium et Occidentalium.
The important task of publishing them in that manner was at length undertaken by Dom Ruinart, a Maurist monk, in his Acta primorum martyrum sincera et selecta.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "martyrum" in a variety of sentences. We hope that you will now be able to make sentences using this word.