Строй современного английского языка

underdeveloped, underdone (adjectives), undervalue, underestimate, undermine (verbs).
Other means of word-building are vowel alternations and consonant alternations. However, these are so limited in their application that the presence of this or that vowel or consonant in a word can never be a sure sign of its belonging to a definite part of speech. For example, the alternation [u:] — [i:], in spelling, oo — ee, is found in a few noun-verb groups (doom — deem, food — feed), but it does not follow that the vowel [i:] (spelt ee) is a sign of a verb: there are numerous words belonging to other parts of speech having this vowel in their root: spleen, beech, deed are nouns; keen, green, deep are adjectives, etc. We need not give any more examples. The same is also true of consonant alternations, for example, the alternation [k] — [tS] in such pairs as speak — speech, break — breach, etc. Important as they are from a lexical viewpoint, their grammatical significance is next to nil.
Thus the grammatical aspect of word-building, at least in English, is rather unimportant; the main phenomena of word-building belong to the sphere of lexicology.
In concluding our observations on word-building we may note some so-called nonce-words formed without any suffixes. Thus, in the following example a nonce-word, namely a verb, is formed from an adverb without any suffixes and it is characterised as a verb merely by its surroundings in the sentence. This is a dialogue between a mother and her daughter who was rather late in coming back home from school. "Then where have you been? It's late." "Nowhere." "What?" "Nowhere." "Don't nowhere me. I know how long it takes to walk home from school." (WOODHILL) The third nowhere is shown to be the infinitive of a verb by its position between don't and me. Its meaning is clear from the context. Don't nowhere me obviously means much the same as, Don't say "nowhere" to me, or, Don't try to deceive me by saying "nowhere". In the following example even an unfinished sentence consisting of two words is treated in this way: "Now, Dora — " he began. "Don't you 'Now, Dora' me!" she said in a loud voice, frantically striking the sides of the chair with her hands. "I just can't stand this any longer! I just can't!" (E. CALDWELL) Such formations are not very frequent, and they are conversational rather than literary.
Our study of Modern English morphology will consist of four main items, viz. (1) essentials of morphology: general study of morphemes and types of word-form derivation, (2) the system of parts of speech, (3) study of each separate part of speech, the grammatical categories connected with it, and its syntactical functions.