
1) Ancient Greek society 2) Byzantine law
Found on
https://www.crosswordclues.com/clue/paroikoi

Paroikoi (plural of Greek πάροικος, paroikos, the etymological origin of parish and parochial) is the term that replaced `metic` in the Hellenistic and Roman period to designate foreign residents. In Asia Minor they were named katoikoi. In the Byzantine Empire, paroikoi were non-proprietary peasants, hereditary holders of their land, irr.....
Found on
http://en.wikipedia.org/wiki/Paroikoi
No exact match found.