- Vowel stems
In
Indo-European linguistics , a vowel stem is anoun orverb stem that ends in a vowel that appears in or otherwise influences the noun or verb'sinflectional paradigm . The vowel and noun or verb are both called thematic.In
Latin , nouns of the first, second, fourth, and fifthdeclension s are considered vowel stems; the first declension has the theme vowel "a", the second "o", the fourth "u", and the fifth "e". Stems with "i" are treated together withconsonant stems in the third declension. A similar situation appears in the Latin verb: the first conjugation contains vowel stems with "a", the second with "e", and the fourth with "i". There are no Latin verbs with "o" or "u", and there are very few Latin verbs that areathematic , which is where those verbs that are conjugated with consonant stems would be classified. Greek, by contrast, still preserves a large number of athematic, consonant-stem verbs.Most other Indo-European languages have similar distinctions, or had them in their past. In the
Germanic languages and theCeltic languages , the theme vowels are often hard to perceive because of the loss of final vowels. However, their presence is still felt, in a manner that defines different ways of declining nouns or conjugating verbs, so philologists still occasionally speak of vowel stems and consonant stems in these languages as well.ee also
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Word stem
*Inflection
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