Overview
This chapter provides a more in-depth look at the grammatical properties of words than was possible in the brief sketch provided in §1.3. It begins by recapitulating (and exploring in more detail) what was said about the categorial properties of words in §1.3, and goes on to explore how we determine what grammatical category a given word belongs to in a given use. In the course of the discussion, some new categories will be introduced which are not familiar from traditional grammar. We will see that categorial information alone is not sufficient to describe the grammatical properties of words and that a more fine-grained analysis requires the use of grammatical features.
Grammatical categories
In §1.3, we saw that words are assigned to grammatical categories in traditional grammar on the basis of their shared semantic, morphological and syntactic properties. The kind of semantic criteria (sometimes called ‘notional’ criteria) used to categorise words in traditional grammar are illustrated in much simplified form below:
(1)
(i) Verbs denote actions (go, destroy, buy, eat, etc.)
(ii) Nouns denote entities (car, cat, hill, John, etc.)
(iii) Adjectives denote states (ill, happy, rich, etc.)
(iv) Adverbs denote manner (badly, slowly, painfully, cynically etc.)
(v) Prepositions denote location (under, over, outside, in, on etc.)
However, semantically based criteria for identifying categories must be used with care: for example, assassination denotes an action but is a noun, not a verb; illness denotes a state but is a noun, not an adjective; in fast food, the word fast denotes the manner in which the food is prepared but is an adjective, not an adverb; and Cambridge denotes a location but is a noun, not a preposition. Because semantic criteria can give misleading results if not applied carefully, it is generally more reliable to use morphosyntactic (i.e. morphological and syntactic) criteria to categorise words.
The morphological criteria for categorising words concern their inflectional and derivational properties. Inflectional properties relate to different forms of the same word (e.g. the plural form of a noun like cat is formed by adding the plural inflection -s to give the form cats); derivational properties relate to the processes by which a word can be used to form a different kind of word by the addition of an affix of some kind (e.g. by adding -ness to the adjective ill we can form the noun illness).