(w)

(yū) silt; river sludge; to silt up; choked with silt; variant of 瘀[yu1]

淤伤 (w)

(yūshāng) bruising

淤塞 (w)

(yūsè) choked with silt; silted up

淤泥 (w)

(yūní) silt; sludge; ooze

淤滞 (w)

(yūzhì) silted up; obstructed by silt; variant of 瘀滯|瘀滞[yu1 zhi4]

淤浊不清 (w)

(yūzhuóbùqīng) muddied and unclear (idiom)

淤灌 (w)

(yūguàn) to warp (fertilize land by flooding)

淤积 (w)

(yūjī) to silt up; silt; sediment; ooze; slurry

淤血 (w)

(yūxuè) variant of 瘀血[yu1 xue4]

淤血斑 (w)

(yūxuèbān) bruise; patch of bruising

淤青 (w)

(yūqīng) bruise; contusion