The paper presents and examines -ing formations used in Polish. It also addresses the notion of productivity in morphology and discusses the growing productivity of the English derivational -ing suffix in contemporary Polish. To address the issue of productivity all -ing formations must be divided into foreign loans and derivatives that have been coined in Polish. One of the two forms of analysis of the research material used for the present study is based on the typology of contact-induced innovations; the other involves a synchronic morphological and semantic analysis of -ing formations coined in Polish. A thesis concerning the appearance of English -ing in Polish and its becoming an independent suffix and a productive word-formation rule is proposed.
