기원origin; beginning 단원chapter; unit 차원level 환원return; giving back; restoration 환원주의reductionism 고차원high level; high dimension 고차원적being high-level; being high-dimensional 고차원적high-level; high-dimensional 기원전B.C. 기원후A.D.

조상ancestor 고조great-great grandfather 고조부모great-great grandparents 선조ancestors; forebears; forefathers 시조progenitor; root 외조모maternal grandmother 외조부maternal grandfather 외조부모maternal grandparents 조국motherland 조국애patriotism