Preamble

Pre″am′ble (?), n. [LL. praeambulum, from L. praeambulus walking before, fr. praeambulare to walk before; prae before + ambulare to walk: cf. F. préambule. See Amble.] A introductory portion; an introduction or preface, as to a book, document, etc.; specifically, the introductory part of a statute, which states the reasons and intent of the law.