to trace back
01
遡る, 起源をたどる
to identify the origin or source of something by following its history or development
例
His family can trace back their ancestry to the 17th century.
彼の家族は17世紀まで祖先を遡ることができます。
Scientists traced back the virus to its original host species.
科学者たちはウイルスをその元の宿主種まで遡った。
