さかのぼる
N2遡る溯る逆上る
[sakanoboru]
Definitions
1.Godan verb with 'ru' ending; intransitive verb
to go upstream; to go up (a river)
2.Godan verb with 'ru' ending; intransitive verb
to go back (to the past or origin); to date back (to); to trace back (to); to be retroactive (to)
Example Sentences
川をさかのぼって滝を発見した。
I went upstream and discovered a waterfall.
この祭りの歴史は千年前にさかのぼる。
The history of this festival dates back a thousand years.
この問題の原因は十年前にさかのぼった。
The cause of this problem went back ten years.