ablautPronunciation: /ˈablaʊt/Definition of ablaut noun [mass noun] alternation in the vowels of related word forms, especially in Germanic strong verbs (e.g. in sing, sang, sung): [as modifier]:an ablaut seriesOrigin: mid 19th century: from German, from ab 'off' + Laut 'sound'ablaut in other Oxford dictionaries Definition of ablaut in the US English dictionary
