Vokalstämme
Vokalstämme are a linguistic concept referring to a group of related words that share a common root, often characterized by a change in the vowel sound within that root. This phenomenon, known as ablaut or vowel gradation, is a significant feature in many Indo-European languages, particularly Germanic and Slavic languages. For example, in English, the verb "sing" can be related to "sang" and "sung," demonstrating a Vokalstamm where the vowel changes to indicate different grammatical forms, such as tense or aspect.
The study of Vokalstämme helps linguists reconstruct proto-languages and understand the historical development of word families.