Philippian
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): ( a.) Of or pertaining to Philippi, a city of ancient Macedonia.
(2): ( n.) A native or an inhabitant of Philippi.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
( Φιλιππήσιος ), the patrial title of an inhabitant of Philippi ( Philippians 4:15).