In a contact situation the formally marked paradigmatic, syntactic, and semantic relationships of the speaker’s language may not be meaningful to the hearer. Then the function of morphs and prosodies becomes deictic, that is, pointing and positioning, in relation to the nonverbal context (which restores the overall level of information, of redundancy), and it is the nonverbal context and certain linguistic universals that complete the immediate grammar and meaning. Such a ‘grammar’ is, therefore, context-bound, in the sense that it cannot operate outside its particular context of situation.
- Le Page (1977), Pag. 231