noun
relation; family relationship
Refers to a continuing relationship, often a family tie or connection maintained over time. Not a common everyday word; more likely encountered in literary or formal contexts.
遠く離れていても、続き合いを大切にしたい。
Even if we are far apart, I want to cherish our family relationship.
Compound of 続き (continuation) + 合い (mutual), literally 'continuing together'. The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of a lasting relationship.