# двоюродный
## Russian
### Alternative forms

* двою́рный (dvojúrnyj) — nonstandard

### Etymology

From Old East Slavic дъвою родꙋ (dŭvoju rodu, “of two generations”) + -ный (-nyj). дъвою (dŭvoju) is a genitive dual form, from which -ю- (-ju-) was extracted and used analogously in трою́родный (trojúrodnyj), четверою́родный (četverojúrodnyj).

### Pronunciation

* IPA: [dvɐˈjurədnɨj]
* Audio:(file)
* (non-standard) IPA: [dvɐˈjurnɨj] (phonetic respelling: двою́рный)

### Adjective

двою́родный • (dvojúrodnyj)
* denotes a relative in the same generation as the head noun but one degree greater in separation
    двою́родный дед ― dvojúrodnyj ded ― great uncle, grandfather’s generation
    двою́родный дя́дя ― dvojúrodnyj djádja ― male first cousin once removed, uncle’s generation
    двою́родный брат ― dvojúrodnyj brat ― male first cousin, brother’s generation
    двою́родный племя́нник ― dvojúrodnyj plemjánnik ― male first cousin once removed, nephew’s generation
    двою́родный внук ― dvojúrodnyj vnuk ― grandnephew, grandson’s generation
    двою́родный пра́внук ― dvojúrodnyj právnuk ― great-grandnephew, great-grandson’s generation

#### Usage notes

* There is no single equivalent of this term in English. It is applied to close relations (e.g. brothers, uncles, grandfathers) and indicates a relation that is in the same generation as the term being modified, but is one degree greater in separation in terms of the closest common ancestor. For example, the двою́родный equivalent of one's brother is one's first cousin, because one has a common father with one's brother, but a common grandfather with one's first cousin. Similarly, the двою́родный equivalent of one's grandfather is one's great uncle, because the nearest common ancestor between one and one's grandfather is the grandfather himself, whereas the nearest common ancestor between one and one's great uncle is one's great-grandfather. (The двою́родный equivalent of one's father is one's uncle, but there is already a special term for this relationship.)
| base relationship | двою́родный (dvojúrodnyj) | трою́родный (trojúrodnyj) | четверою́родный (četverojúrodnyj) |
| брат (brat, “brother”) | first cousin | second cousin | third cousin |
| дя́дя (djádja, “uncle”) | first cousin once removed | second cousin once removed | third cousin once removed |
| оте́ц (otéc, “father”) | (= дя́дя (djádja, “uncle”)) | (= двою́родный дя́дя (dvojúrodnyj djádja, “first cousin once removed”)) | (= трою́родный дя́дя (trojúrodnyj djádja, “second cousin once removed”)) |
| дед (ded, “grandfather”) | great uncle | first cousin twice removed | second cousin twice removed |
| пра́дед (práded, “great-grandfather”) | great great uncle | first cousin thrice removed | second cousin thrice removed |
| племя́нник (plemjánnik, “nephew”) | first cousin once removed | second cousin once removed | third cousin once removed |
| сын (syn, “son”) | (= племя́нник (plemjánnik, “nephew”)) | (= двою́родный племя́нник (dvojúrodnyj plemjánnik, “first cousin once removed”)) | (= трою́родный племя́нник (trojúrodnyj plemjánnik, “second cousin once removed”)) |
| внук (vnuk, “grandson”) | grandnephew | first cousin twice removed | second cousin twice removed |
| пра́внук (právnuk, “great-grandson”) | great grandnephew | first cousin thrice removed | second cousin thrice removed |