троюродный

• трою́рный (trojúrnyj) (nonstandard)

From тро́е (tróje) +‎ -ю- (-ju-) +‎ род (rod) +‎ -ный (-nyj), with -ю- (-ju-) by analogy with двою́родный (dvojúrodnyj) (see there for further details).

• IPA^(key): [trɐˈjurədnɨj]
• (nonstandard) IPA^(key): [trɐˈjurnɨj] (phonetic respelling: трою́рный)

трою́родный • (trojúrodnyj)

1. denotes a relative in the same generation as the head noun but two degrees greater in separation

   трою́родный брат ― trojúrodnyj brat ― male second cousin, brother’s generation

   трою́родный племя́нник ― trojúrodnyj plemjánnik ― male second cousin once removed, nephew’s generation

   трою́родный внук ― trojúrodnyj vnuk ― male first cousin twice removed, grandson’s generation

   трою́родный пра́внук ― trojúrodnyj právnuk ― male first cousin three times removed, great-grandson’s generation

• 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 two degrees greater in separation in terms of the closest common ancestor. For example, the трою́родный equivalent of one's brother is one's second cousin, because one has a common father with one's brother, but a common great-grandfather with one's second cousin. (Logically, to find the трою́родный equivalent of a given relation, find the nearest common ancestor, go two generations up, and then go two generations back down, following different children.) See the table at двою́родный (dvojúrodnyj) for more information.