the degree to which speakers use a particular grammatical process for the formation of novel structures. A productive grammatical process defines an open class, one which admits new words or forms. Non-productive grammatical processes may be seen as operative within closed classes: they remain within the language and may include very common words, but are not added to and may be lost in time or through regularization converting them into what now seems to be a correct form. Productivity is, as stated above and implied in the examples already discussed, a matter of degree, and there are a number of areas in which that may be shown to be true. As the example of -en becoming productive shows, what has apparently been non-productive for many decades or even centuries may suddenly come to some degree of productive life, and it may do so in certain dialects or sociolects while not in others, or in certain parts of the vocabulary but not others. Some patterns are only very rarely productive, others may be used by a typical speaker several times a year or month, whereas others (especially syntactic processes) may be used productively dozens or hundreds of times in a typical day. It is not atypical for more than one pattern with similar functions to be comparably productive, to the point that a speaker can be in a quandary as to which form to use —e.g., would it be better to say that a taste or color like that of raisins is raisinish, raisiny, raisinlike, or even raisinly? It can also be very difficult to assess when a given usage is productive or when a person is using a form that has already been learned as a whole. Suppose a reader comes across an unknown word such as despisement meaning "an attitude of despising". The reader may apply the verb+ment noun-formational process to understand the word perfectly well, and this would be a kind of productive use. This would be essentially independent of whether or not the writer had also used the same process productively in coining the term, or whether he or she had learned the form from previous usage (as most English speakers have learned government, for instance), and no longer needed to apply the process productively in order to use the word. Similarly a speaker or writer's use of words like raisinish or raisiny may or may not