yū
silt
river sludge
to silt up
choked with silt
variant of 瘀[yu1]
yū jī
to silt up
silt
sediment
ooze
slurry
yū zhì
silted up
obstructed by silt
variant of 瘀滯|瘀滞[yu1 zhi4]
yū sè
choked with silt
silted up
yū guàn
to warp (fertilize land by flooding)
yū zhuó bù qīng
muddied and unclear (idiom)
chū yū ní ér bù rǎn
lit. to grow out of the mud unsullied (idiom)
fig. to be principled and incorruptible