Kanji
遡
N1
13 strokes
Grade 8
go upstream, retrace the past
On'yomi (音読み)
ソ、 サク
Kun'yomi (訓読み)
さかのぼ.る
On'yomi compounds (音読み)
遡及
そきゅう
retroactivity; retroaction
遡源
さくげん
going to the source; tracing to the origin
遡及的
そきゅうてき
retroactive
遡上
そじょう
going upstream; swimming upstream
遡行
そこう
going upstream; sailing against the current
遡求
そきゅう
redemption; recourse
遡河魚
そかぎょ
anadromous fish (fish that migrates upstream, e.g. salmon)
遡及書誌
そきゅうしょし
retrospective bibliography
遡求権
そきゅうけん
right of recourse; right for redemption
不遡及
ふそきゅう
non-retroactivity
Kun'yomi words (訓読み)
遡る
さかのぼる
to go upstream; to go up (a river)
Example sentences
彼（かれ）の家系（かけい）は１７世紀（せいき）にさかのぼる。
His family dates back to the seventeenth century.
過去（かこ）へさかのぼることは不可能（ふかのう）だと見（み）なされている。
It is considered impossible to travel back to the past.