4. Antonyms

Antonyms are words belonging to the same part of speech, identical in style, expressing contrary or contradictory notions.

V.N. Comissarov in his dictionary of antonyms classified them into two groups : absolute or root antonyms /»late» - «early»/ and derivational antonyms / «to please’ - «to displease»/ . Absolute antonyms have different roots and derivational antonyms have the same roots but different affixes. In most cases negative prefixes form antonyms / un-, dis-, non-/. Sometimes they are formed by means of suffixes -ful and -less.

The number of antonyms with the suffixes ful- and -less is not very large, and sometimes even if we have a word with one of these suffixes its antonym is formed not by substituting -ful by less-, e.g. «successful» -»unsuccessful», «selfless» - «selfish». The same is true about antonyms with negative prefixes, e.g. «to man» is not an antonym of the word «to unman», «to disappoint» is not an antonym of the word «to appoint».

The difference between derivational and root antonyms is not only in their structure, but in semantics as well. Derivational antonyms express contradictory notions, one of them excludes the other, e.g. «active»- «inactive». Absolute antonyms express contrary notions. If some notions can be arranged in a group of more than two members, the most distant members of the group will be absolute antonyms, e.g. «ugly» , «plain», «good-looking», «pretty», «beautiful», the antonyms are «ugly» and «beautiful».

Not every word in a language can have antonyms. This type of opposition can be met in qualitative adjectives and their derivatives, e.g. beautiful- ugly, to beautify - to uglify, beauty - ugliness. It can be also met in words denoting feelings and states, e.g. respect - scorn, to respect - to scorn, respectful - scornful, to live - to die, alive - dead, life - death. It can be also met among words denoting direction in space and time, e.g. here - there, up - down , now - never, before - after, day - night, early - late etc.

If a word is polysemantic it can have several antonyms, e.g. the word «bright» has the antonyms «dim», «dull», «sad».

5. Morpheme

The morpheme is the elementary meaningful lingual unit built up from phonemes and used to make words

Studying the morpheme we actually study the word: its inner structure, its functions, and the ways it enters speech.

In traditional grammar, the study of the morphemic structure of the word is based on two criteria: the positional criterion - the location of the morphemes with regard to each other, and the semantic (or functional) criterion - the contribution of the morphemes to the general meaning of the word.

According to these criteria morphemes are divided into root-morphemes (roots) and affixal morphemes (affixes).

Roots express the concrete, “material” part of the meaning of the word and constitute its central part. Affixes express the specificational part of the meaning of the word: they specify, or transform the meaning of the root.

Affixal specification may be of two kinds: of lexical or grammatical character.

So, according to the semantic criterion affixes are further subdivided into lexical, or word-building (derivational) affixes, which together with the root constitute the stem of the word, and grammatical, or word-changing affixes, expressing different morphological categories, such as number, case, tense and others.

With the help of lexical affixes new words are derived, or built; with the help of grammatical affixes the form of the word is changed.

According to the positional criterion affixes are divided into prefixes, situated before the root in the word, e.g.: under-estimate, and suffixes, situated after the root, e.g.: underestim-ate.

Prefixes in English are only lexical: the word underestimate is derived from the word estimate with the help of the prefix under-.

Suffixes in English may be either lexical or grammatical; e.g. in the word underestimates -ate is a lexical suffix, because it is used to derive the verb estimate (v) from the noun esteem (n), and –s is a grammatical suffix making the 3rd person, singular form of the verb to underestimate.

Grammatical suffixes are also called inflexions (inflections, inflectional endings).