遡さかのぼる

1. 1to go upstream ; to go up (a river) Translated by Jiyomi
2. 2to go back (to the past or origin) ; to date back (to) ; to trace back (to) ; to be retroactive (to) Translated by Jiyomi

Other writings and readings

Kanji · tap to open

JMdict entry 1397830 · frequency rank 50. Source and licence.