The book is a collection of 10 papers on theoretical and applied linguistics, and is divided into two sections. Part I, devoted to Theoretical Linguistics, addresses a range of issues pertaining to phonology, morphophonology, morphology, cognitive semantics, syntax and lexicology, and consists of six chapters. Part II, Applied Linguistics, comprises four chapters, which investigate the intricacies of language acquisition, psycholinguistics and pragmatics, discourse analysis, and translation studies. The languages analysed include Polish, English, French, Spanish, Russian, Middle English, Middle French, Anglo-Norman and Bangor Welsh. Some of the phenomena analysed in the volume are the properties of Bangor Welsh diphthongs in the light of the Lateral Theory of Phonology, Polish palatalization within Element Theory, lexical convergence in Psalters, bilingual acquisition, impoliteness in talk-show political discourse, and translation and localisation of video games, among others.