Greek goddess who is the equivalent of the Roman Pax (5)

I believe the answer is:

irene

(Other definitions for irene that I've seen before include "US actress, -- Dunne" , "Representative of peace" , "Peaceful girl" , "Girl's name; Soames Forsyte's first wife" , "- - Handl, actress" .)

I've seen this clue in The New York Times.

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