It’s a term paper for a Bachelor seminar on English Morphology ” English Morphology from a historical perspective”. It should be on a word formation process, e.g. suffixation/prefixation/compounding and ideally, corpora like COCA/COHA should be used. A diachronic or synchronic approach is possible.
It can concentrate on a certain period of time. It is sufficient to concentrate, for example on one particular prefix, like “un-“.