Ablaut
Introduction
Ablaut is a grammatical phenomenon observed in many languages, including English, German, and other Indo-European tongues. It refers to the systematic variation of vowel sounds within related words or forms of a word, often indicating changes in tense, mood, or aspect. This process is distinct from umlaut, another form of vowel change, and is a key feature of the morphological structure of many languages.
Etymology
The term 'Ablaut' originates from the German language, where it literally translates to 'off-sound' or 'sound off'. It was first used in the field of linguistics by Jacob and Wilhelm Grimm, the famous Grimm Brothers, who are also known for their collection of folk tales. The term was used to describe the systematic vowel changes observed in the Germanic languages.
Function and Examples
In the context of linguistics, Ablaut serves a grammatical function, indicating changes in tense, mood, or aspect within a word. This is often seen in the formation of past tense or past participle forms of strong verbs in English. For example, the verb 'sing' changes to 'sang' in the past tense and 'sung' in the past participle, demonstrating the Ablaut pattern of i-a-u.
Another example can be seen in the verb 'swim', which changes to 'swam' in the past tense and 'swum' in the past participle, following the Ablaut pattern of i-a-u. Similarly, the verb 'drink' changes to 'drank' and 'drunk', again following the same Ablaut pattern.
Ablaut in Indo-European Languages
Ablaut is a common feature in many Indo-European languages, including German, Dutch, and Old Norse, among others. It is a key aspect of the morphological structure of these languages, particularly in the formation of verb tenses.
In German, for example, the verb 'singen' (to sing) changes to 'sang' in the past tense and 'gesungen' in the past participle. Similarly, the verb 'trinken' (to drink) changes to 'trank' and 'getrunken', following the same Ablaut pattern.
Ablaut vs. Umlaut
While both Ablaut and umlaut involve vowel changes, they serve different functions and occur under different circumstances. Ablaut is a systematic and predictable change in vowel sounds that occurs within related words or forms of a word, often indicating changes in tense, mood, or aspect. Umlaut, on the other hand, is a form of vowel change that occurs due to the influence of a following vowel or semivowel.
For example, in German, the noun 'Mann' (man) changes to 'Männer' (men) in the plural form. This change from 'a' to 'ä' is an example of umlaut, not Ablaut.
Conclusion
Ablaut is a fascinating aspect of language, demonstrating the systematic and predictable nature of linguistic patterns. It plays a crucial role in the morphological structure of many languages, particularly those within the Indo-European family, and continues to be a subject of study for linguists and language enthusiasts alike.
See Also

