Kanji

遡

遡

go upstream, retrace the past

Kanji

Grade

Grade 8

Strokes

13 strokes

Radical

⻌部

On'yomi (Chinese Reading)

ソ, サク

Kun'yomi (Japanese Reading)

さかのぼる

Example sentences

遡る さかのぼる
鮭 は 産卵 の ため に 、 川 を 遡る 。

Salmon swim upstream for spawning.

起源 きげん
この 文化 の 起源 は 古代 ローマ に 遡る 。

The origin of this culture dates back to ancient Rome.

遡行 そこう
鮭 が 川 を 遡行 する

Salmon swim upstream in the river.

遡上 そじょう
鮭 は 産卵 の ため に 川 を 遡上 する 。

Salmon go upstream to spawn.

遡及 そきゅう
新しい 法律 の 規定 を 過去 に 遡及 して 適用 する こと は 原則 として 認められない 。

Applying the provisions of a new law retroactively is generally not permitted.

Example Vocabulary

遡る

さかのぼる

to go upstream; to go back in time; to retrace

遡行

そこう

going upstream; ascending a river

遡上

そじょう

going upstream

遡航

そこう

遡及

そきゅう

retroactive; retrospective

遡及的

そきゅうてき

不遡及

ふそきゅう

遡源

さくげん

遡求

遡河魚

Sottaku

About Sottaku

Sottaku is an app for learning Chinese, Japanese, Korean, English, Spanish, French, German, and Italian with a strong focus on SRS. It includes automatic flashcard creation for hundreds of thousands of words, grammar breakdowns in example sentences, language-specific study packs where available, adaptive quizzes, mobile apps, a browser extension, and community features. Give it a try now! All learning content is free with no limits on flashcards or study time.

Sottaku is built to match the habits of successful learners. By using Sottaku, you will naturally learn in the most efficient way possible, as proven by countless success stories in the language learning community.

Free Sign Up

Free Forever

Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.

Smart SRS System

Our flashcard system uses the FSRS algorithm (also used in Anki) to optimize your review schedule and maximize retention.

Comprehensive Content

From hanzi, kana, hangul, and European vocabulary basics to grammar and reading practice where available, we have lessons for every level. Practice with quizzes tailored to your skill.

Community Chat

Ask level-appropriate questions and get help from the community. Learn together with fellow learners across all 8 supported languages.