Intended for English and foreign language instruction at the junior college, university, or high school level, this textbook aims to help students "crack the code" of English in order to become better speakers and writers. Part 1 contains 25 lessons on roots, prefixes, and suffixes from Latin, and Part 2 contains 25 lessons on word elements from Greek. Lessons focus on either grammatical form or function ("Suffixes,""Weakening and Hyperbole,""Blends") or semantic category ("The Law,""The Arts,""Literary Terms"). A typical lesson contains: (1) an essay on the major topic; (2) a list of roots, meanings, and sample English words containing the roots; and (3) a list of sentences containing words formed from the lesson's roots, which students are asked to analyze and define. Many chapters also contain a list of words intended for dictionary study or a manipulative exercise. New to this revised edition are indexes of prefixes and words appearing in context. The list of bases at the end of each part has been reformatted for quick reference. Also, the introduction to Part 1 now offers a more detailed overview of the development of the English language in the context of its Indo-European heritage. (Thirty-seven references are included.) (ARH)