- a mark (¨) used as a diacritic over a vowel, as ä, ö, ü, to indicate a vowel sound different from that of the letter without the diacritic, especially as so used in German.Compare dieresis.
- Also called vowel mutation. (in Germanic languages) assimilation in which a vowel is influenced by a following vowel or semivowel.
- to modify by umlaut.
- to write an umlaut over.
Origin of umlaut
1835–45; < German, equivalent to um- about (i.e., changed) + Laut sound
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for umlaut
The umlaut of all these sounds was completed by about the year 1200.A Middle High German Primer
That the radical vowel was modified: for y is the umlaut of u; 3.
The absence of this umlaut points to Northumbrian or W. Saxon.
Wing (n), ahpcha (ch guttural; final a almost as if with umlaut, short and low).
The spelling of the original is 'Buwelle,' without the umlaut, which others use.Pennsylvania Dutch
S. S. Haldeman
- the mark (¨) placed over a vowel in some languages, such as German, indicating modification in the quality of the vowelCompare diaeresis
- (esp in Germanic languages) the change of a vowel within a word brought about by the assimilating influence of a vowel or semivowel in a preceding or following syllable
C19: German, from um around (in the sense of changing places) + Laut sound
Word Origin and History for umlaut
Online Etymology Dictionary, © 2010 Douglas Harper