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Japanese
遡る 溯る (rare) 逆上る (rare) 泝る (rare) さかのぼる 同音

-ru Godan/u-verb

  1. usually kana to go upstream; to go up (a river)
  2. usually kana to go back (to the past or origin); to date back (to); to trace back (to); to be retroactive (to)
Notes
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