expression, godan verb (-ru)
to be mutually dependent
Obsolete four-character idiom derived from classical Chinese; used in historical or literary contexts to describe two parties relying on each other.
「輔車相依る」という古い言い回しは、互いに助け合う関係を表す。
The old expression '輔車相依る' describes a relationship of mutual dependence.
Obsolete four-character idiom; the kanji spelling is the standard representation.
Variant kanji spelling using 倚 instead of 依; both are rare and obsolete.
From classical Chinese; the exact historical derivation is uncertain, but the phrase is conventionally associated with the idea of two parts of a carriage (輔 and 車) relying on each other.