HSK10+
yū
mud
Phonosemantic compound. 氵 represents the meaning and 於 represents the sound.
氵 Meaning component
shui, shuǐ
water
氵 is a component form of 水.
於 Sound component
yú, yū, wū
in
Seal script
Regular script
淤
mud, sediment; clog up, silt up; silt; river sludge; to silt up; choked with silt; variant of 瘀[yū]
silt
淤泥
淤血
clotted blood
淤积
淤塞
silted up
Academia Sinica
Make Me a Hanzi
Unicode
Dong Chinese
CC-CEDICT
SUBTLEX-CH
MTSU Chinese text computing