溯

sù = su + Ø4

to go upstream / to trace the source

溯

遡

sù = su + Ø4

variant of 溯[su4]

溯 character breakdown

溯
- 朔
  - 月
    - 二
      - 一
    - ⺆
      - 丿
      - ㇆
        
        一
        
        亅
  - 屰
    - 屮
    - 䒑
      - 一
      - 丷
- 氵
  - ⺀
    - 丶
  - ㇀

朔

shuò = shu + o4

beginning / first day of lunar month / north

朔 = 屰 + 月 : The moon (月) wants to use the bathtub in the observatory's bathroom (o4), but Sheldon Shrimp (shu) has been using it all day and it doesn't seem like he'll finish any time soon. The moon angrily tells Sheldon to get out, but Sheldon disobeys (屰). Finally the moon remembers that it is the first day of the lunar month (朔), so he causes a spring tide (朔) which washes Sheldon out of the bathtub (and out of the bathroom) so that the moon can finally take a bath.

氵

shuǐ = shu + ei3

"water" radical in Chinese characters (Kangxi radical 85), occurring in 沒|没[mei2], 法[fa3], 流[liu2] etc / see also 三點水|三点水[san1 dian3 shui3]

氵 = ⺀ + ㇀ : Mnemonic symbol: a bottle of water. Sheldon Shrimp (shu) enjoys a bottle of water (氵) in the Eiffel Tower's living room (ei3). The got the water by scratching (㇀) a blossom (⺀) and catching the leaking dew in a bottle.