Parthian
WordNet
adjective
(1) Delivered at the moment of parting as if in flight or retreat
"Paused to deliver a parting shot at the door"
"A Parthian volley of expletives from Uncle Billy"- Bret Harte
(2) Pertaining to Parthia or its people or language or culture
"Parthian archeology"
noun
(3) A native or inhabitant of Parthia