Adjective
Diocletianic (not comparable)
Of or relating to the Roman emperor Diocletian.
the Diocletian persecution
Contemporary records of his deeds were most probably destroyed during the Diocletianic Persecution on early 4th century and a tale of martydom was recorded in Passio Marii et Marthae, a work published in the 5th or 6th century. Source: Internet
Minting of the Diocletianic "pure" silver argenteus ceased, therefore, soon after 305, while the billon currency continued to be used until the 360s. Source: Internet