LAT

Lewis Short

Pyrrhus | Pyrrhĭdae, ārum (noun M.m) : Πύρρος.
* Son of Achilles and Deïdamia (otherwise called Neoptolemus), founder of a kingdom in Epirus, slain at Delphi by Orestes, Just. 17, 3, 18; Verg. A. 2, 469; 526 sq.; Ov. H. 8, 3; Hyg. Fab. 97; 123; Dict. Cret. 4, 15.
* Pyrrhi Castra, a place in Laconia, Liv. 35, 27; in Triphylia, id. 32, 13. — Hence
* King of Epirus, about 280 B.C., an enemy of the Romans; on account of his descent from Achilles, called Aeacides (v. h. v.), Cic. Lael. 8, 28; id. Rep. 3, 28, 31; id. Fin. 2, 19, 61; id. Off. 1, 12, 38; 3, 22, 86; Hor. C. 3, 6, 35; Just. 35, 3 sqq.; Sil. 14, 94.
Charlton T. Lewis, Charles Short, A Latin Dictionary

PIR

Male Personal name
Confirmed occurences in the Roman Empire:
Prosopographia Imperii Romani
memory