Refers to the inheritance or familial relationship through collateral relatives rather than direct lineage.

सहायक वंश विस्तार

English Usage: Her collateral descent traced back to distant cousins who settled in another country.

Hindi Usage: उनकी सहायक वंश विस्तार दूर के चचेरे भाइयों तक पहुंची, जो किसी अन्य देश में बस गए थे।