CONCORDAT, noun In the canon law, a compact, covenant, or agreement concerning some beneficiary matter, as a resignation, permutation, promotion and the like. In particular, an agreement made by a prince with the Pope relative to the collation of benefices; such as that between the Emperor Frederic III., the German princes, and the Popes legate, adjective D. 1448.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI