Guus Kroonen’s research focuses on the historical linguistics of the Germanic languages, both from the modern dialectal and the Indo-European perspective. He studied Scandinavian languages in Amsterdam and Comparative Indo-European linguistics in Leiden, where he also obtained his doctoral degree. He is a contributor to the Leiden Indo-European Etymological Dictionary, for which he has prepared the Etymological Dictionary of Proto-Germanic (Brill, forthcoming).

”Alles in allem handelt es sich um eine Studie von hohem Wert” in: Germanistik, 2012, Band 53, Heft 1-2“Kroonen’s study is well researched and carefully presented. He offers a wealth of data… The author has made important connections between the various items ha has collected from the different Germanic languages, including modern dialects, and used reasoned judgment in their evaluation. The book will prove useful not only to scholars of Germanic and Indo-European phonology and morphology, but also those interested in Germanic etymology.”NOWELE 67:2 (2014)

• PrefaceList of abbreviationsLanguage abbreviationsLinguistic abbreviationsLogical symbolsPreliminary remarksThe Germanic linguistic sourcesNormalization and orthographyPresentation of the evidenceIntroductionThe inflection of the n-stemsThe Indo-European n-stemsOrigins of the inflectional typesThe Proto-Germanic n-stemsThe Proto-Germanic geminatesKluge’s lawShortening in over-long syllablesExceptions to Kluge’s lawDifferent configurations of Kluge’s lawKluge’s law and the n-stemsGemination as grammatischer WechselReconstruction of the n-stem paradigmParadigmatic analogyKluge’s law and the directionalsThe Germanic directional systemThe Pre-Germanic situationOn the full grade of Go. iupConsonant gradation in the verbEvidence for Osthoff’s hypothesisThe iterative systemEvidence for de-iterativizationDe-iterativization in GothicThe rise of PGm. *ū as a full-grade markerA life without Kluge’s law?The Expressivity TheoryEvaluation of the argumentationThe Leiden Substrate TheoryRoot ablaut in the n-stemsKauffmann and nominal ablautThe ablaut typesMethodologyReconstructing the ablauting paradigmThe evidenceThe *e ~ *u typeThe *e ~ *a typeThe *a ~ *u typeThe *ī ~ *i typeThe*ai ~ *ı ̄̆typeThe *ū ~ *u typeThe *ū ~ *u ~ *a typeThe *ō ~ *a typeThe *ō ~ *ū̆ typeThe *ē ~ *a typePseudo-ablautUpper GermanWest NorseSummary and outlookSummaryOutlookBibliographyAbbreviationsReferencesIndex of cited forms