THE AMERICAN HERITAGE DICTIONARY OF THE ENGLISH LANGUAGE

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'''The American Heritage Dictionary of the English Language''' ('AHD') is an American dictionary of the English language published by Boston publisher Houghton Mifflin, the first edition of which appeared in 1969. Its creation was spurred by the controversy over the ''Webster's Third New International Dictionary''.
James Parton, the owner of the history magazine'' American Heritage'', was appalled by the "permissiveness" of ''Webster's Third'', published in 1961, and tried to buy the G. and C. Merriam Company so he could undo the changes. When that failed, he contracted with Houghton to publish a new dictionary. The AHD was edited by William Morris and relied on a usage panel of 105 writers, speakers, and eminent persons for usage notes.
The AHD broke ground among dictionaries by using corpus linguistics in compiling word-frequency and other information. The AHD made the innovative step of combining ''prescriptive'' elements (how language ''should'' be used) and ''descriptive'' information (how it actually ''is'' used); the latter was derived from text corpora.
Citations were based on a million-word, three-line citation database prepared by Brown University linguist Henry Kucera.
It is also somewhat innovative in its liberal use of photographic illustrations, which at the time was highly unusual for general reference dictionaries, many of which went largely or completely unillustrated. It also has an unusually large number of biographical entries for notable persons.
The first edition appeared in 1969, highly praised for its Indo-European etymologies. In addition to the normally expected etymologies, which for instance trace the word ''ambiguous'' to a Proto-Indo-European root ''ag-'', meaning "to drive," the appendices included a seven-page article by Professor Calvert Watkins entitled "Indo-European and the Indo-Europeans" and "Indo-European Roots", 46 pages of entries that are each organized around one of some thousand inferred Proto-Indo-European roots and the English words of the AHD that are understood to have evolved from them. These entries might be called "reverse etymologies": the ''ag-'' entry there, for instance lists 49 words derived from it, as diverse as ''agent'', ''essay'', ''purge'', ''stratagem'', ''ambassador'', ''axiom'', and ''pellagra'', along with information about varying routes through intermediate transformations on the way to the contemporary words.
The second edition, published in 1980, omitted the Indo-European etymologies, but they were reintroduced in the third edition, published in 1992. The third edition was also a departure for the publisher because it was developed in a database, which facilitated the use of the linguistic data for other applications, such as electronic dictionaries. The fourth edition (2000) added Semitic language materials, including an analogous appendix of roots. As of 2007, it remains the current edition. Throughout the various editions, however, the AHD has a long tradition of inserting minor revisions (such as a biographical entry, with photograph, for each newly elected U.S. President) in successive printings of any given edition.
The AHD is larger than the desk dictionaries of the time but smaller than ''Webster's Third New International Dictionary'' or ''The Random House Dictionary of the English Language''.
There is a lower-priced college edition with monocolor printing.

Contents

External links

External links

★ yourDictionary's American Heritage Dictionary online

★ Bartleby's American Heritage Dictionary online

★ The American Heritage Book of English Usage

★ The American Heritage Dictionary Software

★ Search the audio pronunciations of American Heritage Dictionary and the American Heritage Medical Dictionary