iv. Next, under a distinct head, although not separable from the preceding, may be considered the differentiation of languages, i.e. the manner in which differences of meaning and form have arisen in them. Into their first creation we have ceased to enquire: it is their aftergrowth with which we are now concerned. How did the roots or substantial portions of words become modified or inflected? and how did they receive separate meanings? First we remark that words are attracted by the sounds and senses of other words, so that they form groups of nouns and verbs analogous in sound and sense to one another, each noun or verb putting forth inflexions, generally of two or three patterns, and with exceptions. We do not say that we know how sense became first allied to sound; but we have no difficulty in ascertaining how the sounds and meanings of words were in time parted off or differentiated. (1) The chief causes which regulate the variations of sound are (a) double or differing analogies, which lead sometimes to one form, sometimes to another (b) euphony, by which is meant chiefly the greater pleasure to the ear and the greater facility to the organs of speech which is given by a new formation or pronunciation of a word (c) the necessity of finding new expressions for new classes or processes of things. We are told that changes of sound take place by innumerable gradations until a whole tribe or community or society find themselves acquiescing in a new pronunciation or use of language. Yet no one observes the change, or is at all aware that in the course of a lifetime he and his contemporaries have appreciably varied their intonation or use of words. On the other hand, the necessities of language seem to require that the intermediate sounds or meanings of words should quickly become fixed or set and not continue in a state of transition. The process of settling down is aided by the organs of speech and by the use of writing and printing. (2) The meaning of words varies because ideas vary or the number of things which is included under them or with which they are associated is increased. A single word is thus made to do duty for many more things than were formerly expressed by it; and it parts into different senses when the classes of things or ideas which are represented by it are themselves different and distinct. A figurative use of a word may easily pass into a new sense: a new meaning caught up by association may become more important than all the rest. The good or neutral sense of a word, such as Jesuit, Puritan, Methodist, Heretic, has been often converted into a bad one by the malevolence of party spirit. Double forms suggest different meanings and are often used to express them; and the form or accent of a word has been not unfrequently altered when there is a difference of meaning. The difference of gender in nouns is utilized for the same reason. New meanings of words push themselves into the vacant spaces of language and retire when they are no longer needed. Language equally abhors vacancy and superfluity. But the remedial measures by which both are eliminated are not due to any conscious action of the human mind; nor is the force exerted by them constraining or necessary.
(7) We have shown that language, although subject to laws, is far from being of an exact and uniform nature. We may now speak briefly of the faults of language. They may be compared to the faults of Geology, in which different strata cross one another or meet at an angle, or mix with one another either by slow transitions or by violent convulsions, leaving many lacunae which can be no longer filled up, and often becoming so complex that no true explanation of them can be given. So in language there are the cross influences of meaning and sound, of logic and grammar, of differing analogies, of words and the inflexions of words, which often come into conflict with each other. The grammarian, if he were to form new words, would make them all of the same pattern according to what he conceives to be the rule, that is, the more common usage of language. The subtlety of nature goes far beyond art, and it is complicated by irregularity, so that often we can hardly say that there is a right or wrong in the formation of words. For almost any formation which is not at variance with the first principles of language is possible and may be defended.
The imperfection of language is really due to the formation and correlation of words by accident, that is to say, by principles which are unknown to us. Hence we see why Plato, like ourselves unable to comprehend the whole of language, was constrained to 'supplement the poor creature imitation by another poor creature convention.' But the poor creature convention in the end proves too much for all the rest: for we do not ask what is the origin of words or whether they are formed according to a correct analogy, but what is the usage of them; and we are compelled to admit with Hermogenes in Plato and with Horace that usage is the ruling principle, 'quem penes arbitrium est, et jus et norma loquendi.'
(8) There are two ways in which a language may attain permanence or fixity. First, it may have been embodied in poems or hymns or laws, which may be repeated for hundreds, perhaps for thousands of years with a religious accuracy, so that to the priests or rhapsodists of a nation the whole or the greater part of a language is literally preserved; secondly, it may be written down and in a written form distributed more or less widely among the whole nation. In either case the language which is familiarly spoken may have grown up wholly or in a great measure independently of them. (1) The first of these processes has been sometimes attended by the result that the sound of the words has been carefully preserved and that the meaning of them has either perished wholly, or is only doubtfully recovered by the efforts of modern philology. The verses have been repeated as a chant or part of a ritual, but they have had no relation to ordinary life or speech. (2) The invention of writing again is commonly attributed to a particular epoch, and we are apt to think that such an inestimable gift would have immediately been diffused over a whole country. But it may have taken a long time to perfect the art of writing, and another long period may have elapsed before it came into common use. Its influence on language has been increased ten, twenty or one hundred fold by the invention of printing.
Before the growth of poetry or the invention of writing, languages were only dialects. So they continued to be in parts of the country in which writing was not used or in which there was no diffusion of literature. In most of the counties of England there is still a provincial style, which has been sometimes made by a great poet the vehicle of his fancies. When a book sinks into the mind of a nation, such as Luther's Bible or the Authorized English Translation of the Bible, or again great classical works like Shakspere or Milton, not only have new powers of expression been diffused through a whole nation, but a great step towards uniformity has been made. The instinct of language demands regular grammar and correct spelling: these are imprinted deeply on the tablets of a nation's memory by a common use of classical and popular writers. In our own day we have attained to a point at which nearly every printed book is spelt correctly and written grammatically.
(9) Proceeding further to trace the influence of literature on language we note some other causes which have affected the higher use of it: such as (1) the necessity of clearness and connexion; (2) the fear of tautology; (3) the influence of metre, rhythm, rhyme, and of the language of prose and verse upon one another; (4) the power of idiom and quotation; (5) the relativeness of words to one another.
It has been usual to depreciate modern languages when compared with ancient. The latter are regarded as furnishing a type of excellence to which the former cannot attain. But the truth seems to be that modern languages, if through the loss of inflections and genders they lack some power or beauty or expressiveness or precision which is possessed by the ancient, are in many other respects superior to them: the thought is generally clearer, the connexion closer, the sentence and paragraph are better distributed. The best modern languages, for example English or French, possess as great a power of self-improvement as the Latin, if not as the Greek. Nor does there seem to be any reason why they should ever decline or decay. It is a popular remark that our great writers are beginning to disappear: it may also be remarked that whenever a great writer appears in the future he will find the English language as perfect and as ready for use as in the days of Shakspere or Milton. There is no reason to suppose that English or French will ever be reduced to the low level of Modern Greek or of Mediaeval Latin. The wide diffusion of great authors would make such a decline impossible. Nor will modern languages be easily broken up by amalgamation with each other. The distance between them is too wide to be spanned, the