Mid 16th century; earliest use found in James Sanford (fl. 1567–1582), translator. From the name of Ragusa + -ian, partly (as adjective) after Middle French Ragusien, adjective.
Definition of Ragusian in US English:
Ragusian
nounrəˈɡuːzɪən
rare, historical
= Ragusan.
Origin
Mid 16th century; earliest use found in James Sanford (fl. 1567–1582), translator. From the name of Ragusa + -ian, partly (as adjective) after Middle French Ragusien, adjective.