A collection of 10 essays on Early Welsh. Contents: The etymology of Welsh chwith and the semantics and morphology of PIE *k(w)sweibh- ( Peter Schrijver ); Rowynniauc, Rhufoniog: the orthography and phonology of /m/ in Early Welsh ( Paul Russell ); Old English literacy and the provenance of Welsh y ( Peter Kitson ); Two developments in medieval literary Welsh and their implications for dating texts ( Simon Rodway ); The structure and typology of prepositional relative clauses in Early Welsh ( Graham Isaac ); The dry point glosses in Oxoniensis Posterior ( Alexander Falileyev and Paul Russell ); The Old Welsh glosses on Weights and Measures ( Pierre-Yves Lambert ); Marwnad Cunedda a diwedd y Brydain Rufeinig ( John T Koch ); Are there elements of non-standard language in the work of the Gogynfeirdd? ( Peter Busse ); The Progressive in Ystorya Bown de Hamtwn ( Erich Poppe ).