13 votes

Why does рот become рту, in the Dative Case?

Unfortunately, your page doesn't mention this important phenomenon which is called беглая гласная 'a fleeting vowel.' The thing is like this: in some words, the stressed vowels o, e, and ё completely ...
Yellow Sky's user avatar
  • 26.1k
10 votes
Accepted

Как объяснить, почему "светел", однако при этом "смугл"?

Все дело в происхождении слова. В древнерусском «светлый» имело вид свѣтьлъ, а «смуглый» – смаглъ / смѧглъ. Исходя из современного состояния языка это объяснить сложно, проще запомнить, а лучше ...
Sergey Slepov's user avatar
6 votes
Accepted

"Ветер" in genitive - why "ветра", not "ветера"?

The disappearing vowel is called a fleeting / mobile vowel («беглая» гласная). Some words have them, most don't. If a noun has a fleeting vowel, then it will obey these rules: A fleeting vowel can ...
Sergey Slepov's user avatar
6 votes

Russian Cases, Grammar & огонём vs огнём

играй is the imperative mood form that is used for making command and requests. огонём does not exist, the only correct form is огнём - the middle o is dropped - when vowel behaves like that it's ...
shabunc's user avatar
  • 37.9k
5 votes

Russian Cases, Grammar & огонём vs огнём

1) The prohibitive form (Ru) with an infinitive (не + the infinitive) is more official and is used in a colloquial speech as a form of rude impersonal command only: Не играть с огнём. => Не играй с ...
Manjusri's user avatar
  • 4,502
5 votes

Declension of 'ле́в'?

It's not irregular. The mobile vowel is a typical phenomenon for [almost] any masculine singular, non-loan word consisting of two syllables, starting with a singular consonant and taking -и/-ы (and ...
Manjusri's user avatar
  • 4,502
2 votes

"Ветер" in genitive - why "ветра", not "ветера"?

No, this missing letter is just an exception. But there are exceptions for some plural nouns' endings like: Учи́тель - учителя́ (Род. падеж for singular - учи́теля) Дом - дома́ (Род. ...
Niegadaj's user avatar
1 vote

"Ветер" in genitive - why "ветра", not "ветера"?

This extra vowel (mobile vowel) may appear in the grammatical cases when a noun has no ending. But you can't say for sure if it does. In your example this mobile vowel disappears in all cases except ...
AlexVB's user avatar
  • 1,782

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