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early 12c., from Old French chancelier (12c.), from Late Latin cancellarius "keeper of the barrier, secretary, usher of a law court," so called because he worked behind a lattice (Latin cancellus) at a basilica or law court (see chancel). In the Roman Empire, a sort of court usher; the post gradually gained importance in the Western kingdoms. A variant form, canceler, existed in Old English, from Old North French, but was replaced by this central French form.
one who has judicial authority, literally, a "lord of judgement;" a title given to the Persian governor of Samaria (Ezra 4:8, 9, 17).