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かのぼ遡る逆上る泝るIntransitiveUsually kanaGodan verbFreq #9473
1

to go upstream; to go up (a river)

Examples
鮭は川をさかのぼって砂に産卵する。
Salmon go up the river and lay their eggs in the sand.
2

to go back (to the past or origin); to date back (to); to trace back (to); to be retroactive (to)

Examples
その教会は1173年までさかのぼる
The church dates back to 1173.
遡行こう遡航NounIntransitive~する VerbFreq #48642
1

going upstream; sailing against the current

遡上じょうNounIntransitive~する VerbFreq #74158
1

going upstream; swimming upstream

遡及きゅうっきゅうNounIntransitive~する VerbFreq #103194
1

retroactivity; retroaction; being retroactive (to)

遡源くげんげんNounIntransitive~する VerbFreq #157647
1

Formal or literary term

going to the source; tracing to the origin

遡河魚河魚ぎょっかぎょNoun
1

anadromous fish (fish that migrates upstream, e.g. salmon)