Words using 溯

• 遡る さかのぼる — to go upstream
• 遡及 そきゅう — retroactivity
• 遡源 さくげん — going to the source
• 遡上 そじょう — going upstream
• 遡行 そこう — going upstream
• 遡河魚 そかぎょ — anadromous fish (fish that migrates upstream, e.g. salmon)