傍系

彼は本家ではなく傍系の出身だ。

He comes not from the main family but from a collateral line.

おじやいとこは傍系の親族にあたる。

Uncles and cousins count as collateral relatives.

直系の跡継ぎがいなかったため、傍系から当主が迎えられた。

With no heir in the direct line, a head of the family was brought in from a collateral branch.

彼は親会社から傍系の会社に出向した。

He was seconded from the parent company to an affiliated company.

その学派は長い間、学界では傍系と見なされてきた。

That school of thought has long been regarded as outside the academic mainstream.

傍系の部署から社長に抜擢されたのは異例だ。

It is unusual for someone from a side division to be promoted to president.