| Entry | Reading | English | Rank |
|---|---|---|---|
| 遡る | さかのぼる | (v5r) to go back; to go upstream; to make retroactive | 7419 |
| 遡及 | さっきゅう | (n,vs) tracing back; retroactivity | 26080 |
| 遡及 | そきゅう | (n,vs) tracing back; retroactivity | 26080 |
| 遡行 | そこう | (n) going upstream | 35357 |
| 遡及的 | そきゅうてき | (adj-na) retroactive | 51560 |
| 遡求 | そきゅう | (n) redemption | 51560 |
| 遡源 | さくげん | (n,vs) return to the origin; go back to the beginning; retrace | 51560 |
| 遡上 | そじょう | (n,vs) going upstream; retroact; retrospect | 51560 |