ABSTRACT
When we deal with individual changes in language – changes in sound, form or meaning – we may give the impression that entities in a language are undergoing change of only one type at one time. We may fail to observe that as phonological changes are taking place, morphological, syntactic or semantic changes may be going on at the same time, and also that importations may be introduced; moreover, that none of these changes may be related to one another. Yet, as indicated below, such changes interact, and in time affect the language as a whole, not merely one segment of it.
