The term word-building or derivational pattern is used to denote a meaningful combination of stems and affixes that occur regularly enough to indicate the part of speech, the lexico-semantic category and semantic peculiarities common to most words with this particular arrangement of morphemes. Every type of word-building as well as every part of speech has a characteristic set of patterns. According to their derivational structure words form into 2 large classes: simple non-derived words; derivatives complexes. Complexes are classified according to the type of the underline derivational pattern into: derived; compound words.
Derived words fall into: affixational words which in their term are classified into suffixational and prefixational derivatives and conversions. Each derivational type of words is unequally represented in different parts of speech.
Pattern 1: Derivatives: 1 Stem + suffix: beautiful;
2 prefix + stem: unlucky;
3 prefix + stem + suffix: ungenlemanly.
Pattern 2: Compound words: stem + stem: bedroom.
Pattern 3: Compound derivatives: stem + stem + suffix: shortsighted.
Pattern 4: Shortenings: mike = microphone; USSR etc. The largest class in the English vocabulary is derived words: 67% of nouns,86% of adjectives. Compounds: 15% of nouns,4% of adjectives. Simple stems: 18% of nouns,10% of adjectives. According to frequency counts about 60% of the total number of nouns and 62% of the total number of adjectives in current use — are simple words.
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The analysis of the morphemic composition of words defines the ultimate meaningful constituents (UCs), their typical sequence and arrangement, but it does not reveal the hierarchy of morphemes making up the word, neither does it reveal the way a word is constructed, nor how a new word of similar structure should be understood. The morphemic analysis does not aim at finding out the nature and arrangement of ICs which underlie the structural and the semantic type of the word, e.g. words unmanly and discouragement morphemically are referred to the same type as both are segmented into three UCs representing one root, one prefixational and one suffixational morpheme. However the arrangement and the nature
of ICs and hence the relationship of morphemes in these words is different — in unmanly the prefixational morpheme makes one of the ICs, the other IC is represented by a sequence of the root and the suffixational morpheme and thus the meaning of the word is derived from the relations between the ICs un- and manly- (‘not manly’), whereas discouragement rests on the relations of the IC discourage- made up by the combination of the. prefixational and the root-morphemes and the suffixational morpheme -ment for its second IC (’smth that discourages’). Hence we may infer that these three-morpheme words should be referred to different derivational types: unmanly to a prefixational and discouragement to a suffixational derivative.
The nature, type and arrangement of the ICs of the word is known as its derivative structure. Though the derivative structure of the word is closely connected with its morphemic or morphological structure and often coincides with it, it differs from it in principle.
According to the derivative structure all words fall into two big classes: simplexes or simple, non-derived words and complexes or derivatives. Simplexes are words which derivationally cannot’ be segmented into ICs. The morphological stem of simple words, i.e. the part of the word which takes on the system of grammatical inflections is semantically non-motivated land independent of other words, e.g. hand, come, blue, etc. Morphemically it may be monomorphic in which case its stem coincides with the free root-morpheme as in, e.g., hand, come, blue, etc. or polymorphic in which case it is a sequence of bound morphemes as in, e.g., anxious, theory, public, etc.
Derivatives are words which depend on some other simpler lexical items that motivate them structurally and semantically, i.e. the meaning and the structure of the derivative is understood through the comparison with the meaning and the structure of the source word. Hence derivatives are secondary, motivated units, made up as a rule of two ICs, i.e. binary units, e.g. words like friendliness, unwifely, school-masterish, etc. are made up of the ICs friendly + -ness, un- + wifely, schoolmaster+-ish. The ICs are brought together according to specific rules of order and arrangement preconditioned by the system of the language. It follows that all derivatives are marked by the fixed order of their ICs.
The basic elementary units of the derivative structure of words are: derivational bases, derivational affixes and derivational patterns which differ from the units of the morphemic structure of words (different types of morphemes). The relations between words with a common root but of different derivative structure are known as derivative relations. The derivative and derivative relations make the subject of study at the derivational level of analysis; it aims at establishing correlations between different types of words, the structural and semantic patterns
words are built on, the study also enables one to understand how new words appear in the language.
The constituents of the derivative structure are functional units, i.e. units whose function is to indicate relationship between different classes of words or differently-behaving words of the same class and to signal the formation of new words. It follows that derivational functions are proper to different linguistic units which thus serve as ICs of a derivative. It must be also noted that the difference between classes of words is signalled by both the derivative structure of the word, or to be more exact by the stem it shapes, and by the set of paradigmatic inflections that this structure presupposes. For example, the nominal class of words to which derivatives like historian, teacher, lobbyist are referred is signalled by both the derivative structure, i.e. the unity of their ICs history+-ian, teach+ + -er lobby + -ist shaping the stems of these words — and the nominal set of paradigmatic inflections which these stems precondition, i.e. histori-an(O), historian(s), historian('s), historian(s’). The class of words like enrich, enlarge is likewise signalled by their derivative structure (en- + +rich, en-+large) and the verbal set of paradigmatic inflexions. Hence the paradigmatic systems of different classes of words have, among their functions, the function of distinguishing the formal make-up of word classes. It follows that the paradigmatic system of inflections in cases of meaningful absence of the 1С which determines the class membership of the motivated stem functions as the sole indication of its derived nature.
