This is a book about degrammaticalization, a rare type of linguistic change whereby grams become ‘less grammatical’, typical examples being shifts from affix to clitic, or from function word to lexical item. It discusses the alleged unidirectionality of semantic and morphosyntactic change, showing that change is in fact reversible on all levels. It also aims to classify degrammaticalization by examining primitive changes on several levels: semantics, pragmatics, morphology, syntax, and phonology. It is argued that there exist three separate types of degrammaticalization: degrammation, whereby ... More

This is a book about degrammaticalization, a rare type of linguistic change whereby grams become ‘less grammatical’, typical examples being shifts from affix to clitic, or from function word to lexical item. It discusses the alleged unidirectionality of semantic and morphosyntactic change, showing that change is in fact reversible on all levels. It also aims to classify degrammaticalization by examining primitive changes on several levels: semantics, pragmatics, morphology, syntax, and phonology. It is argued that there exist three separate types of degrammaticalization: degrammation, whereby a function word develops into a lexical item; deinflectionalization, whereby an inflectional affix becomes either derivational or enclitic, while gaining additional functions; and debonding, whereby a bound morpheme becomes a free morpheme, often without change on the semantic-functional level.