An insight on semantic change

Seminar paper from the year 2011 in the subject English Language and Literature Studies - Linguistics, grade: 1,7, University of Bamberg (Lehrstuhl fr Englische Sprachwissenschaft ), course: English Etymology, language: English, abstract: "Nothing is perfectly static. Every word, every grammatical element, every locution, every sound and accent is a slowly changing configuration, molded by the invisible and impersonal drift that is the life of language." (Sapir 1949: 171)

Reading this quote, in which Edward Sapir describes the nature of language, there are two important points, which I would like to use as a starting point for this paper. The first point is that language undergoes a continuous change and is never "perfectly static". This is especially true for semantics as Ullmann states: "Of all linguistic elements caught up in this drift, meaning is probably the least resistant to change." (Ullmann 1977: 193) The meaning of words is in a constant process of alteration.
The second point is that the change mentioned above is done by "the invisible and impersonal drift" or to put it in simple words: The change in language in general and in meaning in particular happens unconsciously to the speakers.

This fact poses the following questions: Why do speakers change the meaning of a word if they are not aware of it? What are the forces behind this process, how does this process look like and what are the most relevant types of change? Or in general: What is semantic change?

To give answers to exactly these major questions about semantic change, will be the aim of this paper. The basis for this paper will be the theories of Andreas Blank, who even though being a Romanist, developed a precise, extensive and still very comprehensive theoretical work on semantic change, which is "[...] recommendable for historical semanticists of all languages." (Grzega 2000: 233)