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ablaut

[ ahb-lout, ab-; German ahp-lout ]
/ ˈɑb laʊt, ˈæb-; German ˈɑp laʊt /
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noun Grammar.
(in Indo-European languages) regular alternation in the internal phonological structure of a word element, especially alternation of a vowel, that is coordinated with a change in grammatical function or combination, as in English sing, sang, sung, song; apophony.
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Origin of ablaut

1840–50; <German, equivalent to ab- off + Laut sound
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use ablaut in a sentence

British Dictionary definitions for ablaut

ablaut
/ (ˈæblaʊt, German ˈaplaut) /

noun
linguistics vowel gradation, esp in Indo-European languagesSee gradation (def. 5)

Word Origin for ablaut

German, coined 1819 by Jakob Grimm from ab off + Laut sound
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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