umlaut
n. ஒத்திசைவு முன்னுயிர் மாற்றம், செர்மானிய மொழிக் குழுவில் பின்வரும் உயிரொலிகட்கு இசைய முன்னுயிரில் ஏற்படும் மாறுபாடு.
Um"laut, n. Etym: [G., from um about + laut sound.] (Philol.) Defn: The euphonic modification of a root vowel sound by the influence of a, u, or especially i, in the syllable which formerly followed. Note: It is peculiar to the Teutonic languages, and was common in Anglo-Saxon. In German the umlauted vowels resulting from a, o, u, followed by old i, are written ä, ö, ü, or ae, oe, ue; as, männer or maenner, men, from mann, man. Examples of forms resulting from umlaut in English are geese pl. of goose, men pl. of man, etc.