WebMar 27, 2024 · 濯 (zhào, “to wash clothes”) < *d-liaukh is exopassive derivative of 濯 (zhuó, “clean, brilliant, glossy; to moisten, to wash”) < *d-liauk; relates to 翟 (dí, “long-tailed pheasants or their plumage”) < *liâuk, owing to the birds' shiny feathers (ibid.).