This article focuses on cognitively-oriented research strands evolved in the past two decades, and on language-internal proof for pragmatic factors that by hypothesis allow shift. Work is stressed in which pragmatic inferencing is assayed in context. Contexts are grasped to cover not only the local clause but also intricate clauses, conversational interaction, discourse structuring and typological shifts that are running in the language as a whole. The roles in meaning shift of turn taking, frequency and factors like non-cooperation are touched on.