Petra

Petra, a ruined city, and once the rock capital of Edom, and afterwards of Arabia Petræa; was a place of some importance at one time as a commercial centre; the name Petra signifies rock.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Petöfi, Sandor * Petrarch, Francesco
Peterhead
Peterhof
Peterloo
Peter's, St.
Peter's Pence
Peterwardein
Pétion de Villeneuve, Jérôme
Petite Nature
Petition of Right
Petöfi, Sandor
Petra
Petrarch, Francesco
Petri, Laurentius
Petrie, Flinders
Petrie, George
Petroleum
Pétroleuse
Petronius
Pettie, John
Petty, Sir William
Petty Jury