With an irenic spirit they join the debate, at times ugly and vicious, about the historicity of the Bible (by which they mean the Hebrew Scriptures, also known as the Old Testament).
-- Phyllis Trible, "God's Ghostwriters", New York Times, February 4, 2001

found it myself ... :o)

Main Entry: irenic
Function: adjective
Etymology: Greek eiremacronnikos, from eiremacronnemacron peace (probably of non-Indo-European origin) + -ikos -ic, -ical
: conducive to or operating toward peace, moderation, harmony, and conciliation and away from contention and partisanship especially among disputants <irenic measures> <irenic without being namby-pamby -- Chicago Theol. Seminary Register> <the viewpoint is irenic and the author seeks to show the best features of each religion and church in turn -- N.K.Burger>
synonym see PACIFIC

Duden: irenisch: (bildungsspr.): friedliebend, friedfertig.

In English I would say that "irenic" also means "conducive to peace" which may not be quite the same as the Duden definition (but, then, Duden is not infallible).