1. The morphological structure of the word

1.The morphological structure of the word
Morphology is the study of structure, or form, or description of word-formation (as inflection, derivation, and compounding) in language and the system of word-forming elements and processes in a language (Webster, p.1170). William O’Grady, John Archibald, Mark Aronoff, and Janie Rees-Miller add that morphology is “the system of categories and rules involved in word-formation and interpretation” (2001, p.720). In morphology, the proper topic of study is the play of prefixes and suffixes or the internal changes within the word, which modify the word’s basic meaning. Modern descriptive linguists prefer such traditional terms as inflectional endings, root, stem, and morpheme. Where the traditional grammar would describe cats as consisting of the root cat and –s as an inflectional plural ending, the modern structural linguist would describe both cat and the ending–s as two different morphemes or units of meaning --one carrying the basic meaning of the word; the other, the accessory notion of plurality. However, a distinction would be set up between the two by labeling cat as a free morpheme, which could be used in isolation, and ending–s as a bound morpheme, which has no separate existence. Bloomfield labeled the meaning of the morpheme a “sememe” (as cited in Chisholm, 1981, p. 16); however, linguists did not study the meaning of a morpheme, so this term was dropped out of usage in linguistics. Bloomfield recognized that the complex meaning in a language is not simply the result of combining morphemes. He called the basic feature of arrangement of morphemes a taxeme (1935, p.116). He believes taxemes are meaningless, if taken in the abstract. Combinations of single taxemes occur as conventional grammatical arrangements, tactic forms (p.116). In a linguistic system, a taxeme is parallel to the phoneme in that neither has a meaning, but each is a minimal form-- a phoneme at the phonological level and a taxeme at the grammatical level
A morpheme, which can occur alone as an individual word, is called a free morpheme, whereas a morpheme which can occur only with another morpheme is called a bound morpheme. The morpheme think is a free morpheme; however, morphemes un- and –able in the word unthinkable are bound morphemes. As we mentioned before, any concrete realization of a morpheme is called a morph. A morph should not be confused with a syllable. The difference between them is that “while morphs are manifestations of morphemes and represent specific meaning, syllables are parts of words which are isolated only on the basis of pronunciation” (Jackson & Zé Amvela, 2007, p.4). Other examples of a morpheme’s change when it is combined with another element can be traced in the following examples: the final segment of permit is [t] when it stands alone; however, when the word combines with the morpheme –ion, [t] changes to [∫] in the word permission. Similar alternations are found in the words allude/allusion, alternate/alternation, amalgamate/amalgamation, annotate/annotation, and assuage/assuasive.
+Victoria A. Fromkin et al. (2000) name morphemes that represent categories of words as lexical morphemes. They refer to items (book, pen, table, etc.), actions (go, run, swim, etc.), attributes (red, fair, long, short, etc.), and concepts (theory, notion, etc.) that can be described with words or illustrated with pictures. Such morphemes as –ly, un-, -ed, -s, a, the, an, about, to, this, that, etc. are considered grammatical morphemes; the speaker uses them to signal the relationship between a word and the context in which they are used. Prepositions and determiners belong to grammatical morphemes because they express only a limited range of concepts. It should be noted that not all lexical morphemes are free morphemes, and not all grammatical morphemes are bound morphemes. Such grammatical morphemes as prepositions (about, for, to, etc.) and determiners (this, that, a, an, the, etc.) are free morphemes because they can stand alone.
Complex words such as annotation, builder, professor, and others have internal structure. It is necessary not only to identify each component of the morphemes but also to classify them according to their contribution to the meaning and function of complex words. Typically, complex words consist of a root and one or more affixes. The root constitutes the core of the word and carries the major component of its meaning. Roots belong to a lexical category such as noun (N), verb (V), adjective (Adj), adverb (Adv), and preposition (P). Unlike roots, affixes are bound morphemes, and they do not belong to a lexical category. Affixes are subdivided into prefixes and suffixes. For example, when the suffix –er combines with the root build, the noun builder is coined to denote ‘one who builds.’ The internal structure of this word can be shown in a diagram, which O’Grady, Archibald, Aronoff, and Rees-Miller call “a tree structure” (p. 135). When an affix is attached to the root, the form is called a base or a stem (The terms base and stem may be used interchangeably). Sometimes a base corresponds to the word’s root; for example, in cat, the root is cat, and it is also a base.

A stem is the actual form to which an affix (a suffix or a prefix) is added. In blacken, for example, the affix -en is added to the root black. Sometimes, an affix can be added to the form, which is larger than a root, e.g., authorization (n).

We can distinguish three types of affixes in terms of their position relative to the stem. An affix, which is attached to the front of the stem, is called a prefix, and an affix, which is attached to the end of the stem, is called a suffix.
Some English prefixes and suffixes

Prefixes	Suffixes
de+base de+cease dis+prove im+part im+bibe in+tone inter+fere in+trepid pre+fix pre+judge pre+side	employ+ment enjoy+ment frang+ible frenz+y fulmin+ate gorge+ous grate+ful hunt+er nation+al+ize profess+or prob+ation

A less common type of affix is an infix, which occurs within another morpheme. Although it is common in some languages, in English it appears with expletives, which provide extra emphasis to the word. One might point to certain usages on the American frontier such as guaran-damn-tee , abso-bloody-lutely, and others.
Functional affixes serve to convey grammatical meaning. They build different forms of one and the same word. Instead of creating a new word, functional affixes modify the form of the word in order to mark the grammatical subclass to which it belongs. A word form is defined as one of the different aspects a word may take as a result of inflection. Complete sets of all the various forms of a word when considered as inflectional patterns, such as plurality, declension and conjugation, are termed paradigms. A paradigm is defined as the system of grammatical forms characteristic of a word, e.g., work, work+s, work+ing, and work+ed.
Plurality inflection

Singular	Plural
computer judge country dress fox buzz fly	computer+s judge+s countr+ies dresses foxes buzzes flies

Tense Inflection

Present	Past
play rule cry fix kiss dress	played ruled cried fixed kissed dressed