> < (i) Anglo-Norman and Middle French, French concerner, Middle French conserner to refer or relate to (something) (1385),
and its etymon (ii) post-classical Latin concernere to mix, mingle (things) together (c400 in Augustine), to observe (things) together (4th or 5th cent. in Jerome), to observe, regard, consider (frequently from 13th cent. in British sources; from c1300 in continental sources), to relate to, to affect, involve (frequently from 13th cent. in British sources; from 14th cent. in continental sources) < classical Latin con- con- prefix + cernere cern v.1