plebeian
Plebeian (noun) means one of the ordinary citizens of ancient Rome.
Etymology
Comes from Latin plēbēius (“a commoner; common”) plus -an (adjective-forming suffix), itself from Latin plēbēs plus -ius (adjective-forming suffix), possibly influenced by Middle French plebeyen, plebein, plebien (“a commoner”) and plebeien (“concerning the common people”). Compare Medieval Latin plēbēiānus (“a commoner”), from plēbēius plus -ānus.