"How Dictionaries Are Made?
1. The task of writing a dictionary begins with the reading of vast amounts of the literature of the period or subject that it is intended to cover. As the editors read, they copy on cards every interesting or rare word, every unusual or peculiar occurrence of a common word, a large number of common words in their ordinary uses, and also the sentences in which each of these words appears, thus:
pail
The dairy pails bring home increase of milk
Keats, Endymion
I,44-45
2. That is to say, the context of each word is collected, along with word itself. For a really big job of dictionary writing, such as the Oxford English Dictionary (usually bound in about 25 volumes), millions of such cards are collected, and the task of editing occupies decades.
3. As the cards are collected, they are alphabetized and sorted. When the sorting is completed, there will be for each word anywhere from two to three to several hundred illustrative quotations, each on its card.
4. To define a word, then, the dictionary editor places before him the stack of cards illustrating that word; each of the cards represents an actual use of the word by a writer of some literary or historical importance.
5. He reads the cards carefully, discards some, rereads the rest, and divides up the stack according to what he thinks are the several senses of the word. Finally, he writes his definitions, following the hard-and-fast rule that each definition must be based on what the quotations in front of him reveal about the meaning of the word.
6. The editor cannot be influenced by what he thinks a given word ought to mean. He must work according to the cards or not at all.
7. The writing of a dictionary, therefore, is not a task of setting up authoritative statements about the "true meanings" of words, but a task of recording, to the best of one's ability, what various words have meant to authors in the distant or immediate past.
8. The writer of a dictionary is a historian, not a lawgiver. If, for example, we had been writing a dictionary in 1890, or even as late as 1919, we could have said that the word broadcast means "to scatter" (seed and so on) but we could not have decreed that from 1921 on, the commonest meaning of the word should become "to disseminate audible messages, etc., by wireless telephony."
9. To regard the dictionary, as an "authority," therefore, is to credit the dictionary writer with gifts of prophecy which neither he nor anyone else possesses. In choosing our words when we speak or write, we can be guided by the historical record afforded us by the dictionary,
10. but we cannot be bound by it, because new situations, new experiences, new inventions, new feelings, are always compelling us to give new uses to old words. Looking under a "hood," we should ordinarily have found, five hundred years ago, a monk; today, we find a motorcar engine.
rb