Pidginization –
- The fact or process of producing a simplified or hybrid language; (concrete) a pidginized language.
https://en.oxforddictionaries.com/definition/pidginization
2. is a linguistic process that occurs when people who do not speak the same language come into contact. It involves the simplification of the contacting language and the exploitation of linguistic common denominators. It is essentially an oral process and limited communication.
Decreolisation–
- is the process by which a vernacular loses its basilectal, or “creole,” features under the influence of the language from which it inherited most of its vocabulary. The basilect is the variety that is the most divergent from the local standard speech.
https://www.britannica.com/topic/decreolization
- Decreolization- is typically viewed as the process through which a Creole language gradually merges with its lexifier language, i.e., the standard language of the community, as a result of Creole speakers’ increased access to, and ‘targeting’ of, the latter.
Derivational Morphology–
- Derivational morphology creates word stems, or lexemes. It builds and enlarges the lexicon so that concepts may find expression within a language.
- Derivational morphology is concerned with forming new lexemes, that is, words that differ either in syntactic category (part of speech) or in meaning from their bases.
http://www.oxfordbibliographies.com/view/document/obo-9780199772810/obo-9780199772810-0043.xml
The word that I had most trouble understanding has to be derivational morphology. Morphology is the study of forming words, however derivational morphology forms words with word stems or bases. Shebba says, “ derivational morphology affects world class membership, and meaning” (43). From this definition my understanding is that derivational morphology changes the meaning of the word completely and creates a new word with a new meaning. However, if you are only changing the word stem or bases shouldn’t the word still have a similar meaning.



