from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A change in a vowel sound caused by partial assimilation especially to a vowel or semivowel occurring in the following syllable.
- n. A vowel sound changed in this manner. Also called vowel mutation.
- n. The diacritic mark (¨) placed over a vowel to indicate an umlaut, especially in German.
- transitive v. To modify by umlaut.
- transitive v. To write or print (a vowel) with an umlaut.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An assimilatory process whereby a vowel is pronounced more like a following vocoid that is separated by one or more consonants.
- n. The umlaut process (as above) that occurred historically in Germanic languages whereby back vowels became front vowels when followed by syllable containing a front vocoid (e.g. Germanic lūsi > Old English līs(i) > Modern English lice).
- n. A vowel so assimilated.
- n. The diacritical mark ( ¨ ) placed over a vowel, usually when it indicates such assimilation.
- v. To place an umlaut over a vowel.
from the GNU version of the Collaborative International Dictionary of English
- n. The euphonic modification of a root vowel sound by the influence of a, u, or especially i, in the syllable which formerly followed.
from The Century Dictionary and Cyclopedia
- n. In philology, the German name, invented by Grimm, for a vowel-change in the Germanic languages, brought about by the influence of a vowel in the succeeding syllable: namely, of the vowel i, modifying the preceding vowel in the direction of e or i, and of the vowel u, modifying the preceding vowel toward a or u.
- In philology, to form with the umlaut, as a form; also, to affect or modify by umlaut, as a sound.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a diacritical mark (two dots) placed over a vowel in German to indicate a change in sound
German : um-, around, alteration (from Middle High German umb-, from umbe, from Old High German umbi) + Laut, sound (from Middle High German lūt, from Old High German hlūt).(American Heritage® Dictionary of the English Language, Fourth Edition)
From German Umlaut, from um ("around") + Laut ("sound"), from Old High German hlut. (Wiktionary)