The degree cycle
The grammaticalization of the demonstratives <i>this</i>, <i>that</i> and <i>thus</i> is investigated with respect to their functions as degree adverbs using empirical data from dictionaries and historical and modern corpora. It is first argued that <i>thus</i> participates in the CP cycle. With respect to <i>this</i> and <i>that, </i> data relevant to the development of the degree adverb function is presented and possible relevant constructions identified. It is argued that the degree adverb function of <i>that</i> possibly occurs later than the historical dictionaries indicate. The degree adverb function of <i>this</i> is challenging to trace due to the apparent overlap with <i>thus</i>.