- w:Germanic umlaut, Germanic umlaut, a phonological phenomenon where an earlier vowel takes on the quality of a second vowel. Mildly formative in Modern German by analogy, present in English only as irregular fossils.
- A partial assimilation of a vowel.
- A vowel so assimilated.
- (orthography): The diacritical mark ( Â¨ ) placed over a vowel to indicate such assimilation.
Etymology: Umlaut < um (around) + Laut (sound).
- To place an umlaut over a vowel.
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Full Definition of umlaut