渭

wèi = w + ei4

the Wei River in Shaanxi through the Guanzhong Plain 關中平原|关中平原[Guan1 zhong1 Ping2 yuan2]

渭 character breakdown

渭
- 氵
  - ⺀
    - 丶
  - ㇀
- 胃
  - 月
    - 二
      - 一
    - ⺆
      - 丿
      - ㇆
        
        一
        
        亅
  - 田
    - 十
      - 一
      - 丨
    - 囗

"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.

胃

wèi = w + ei4

stomach / CL:個|个[ge4]

胃 = 月 + 田 : Willy Walrus (w) set up a mooncake (月) field (田) in the Eiffel Tower's bathroom (ei4). This led to him eating way too much cake, and now his stomach (胃) hurts. To relief the pain he uses a hot water bottle (mnemonic symbol for 胃).