Webster's Revised Unabridged Dictionary · 1913

Philadelphian

Philadelphian , adjective

[Greek filadelfia brotherly love, from fila`delfos brotherly; fi`los loved, loving, friendly + 'adelfo`s brother.]

Of or pertaining to Ptolemy Philadelphus, or to one of the cities named Philadelphia, esp. the modern city in Pennsylvania.

Philadelphian , noun

1.
A native or an inhabitant of Philadelphia.
2.
(Ecclesiastical Hist.) One of a society of mystics of the seventeenth century, -- called also the Family of Love. — Tatler