瑟 sat¹ {sè}

a type of standing harp, smaller than konghou 箜篌, with 5-25 strings

瑟瑟 sat¹ sat¹ {sè sè}

1. trembling
2. rustling

瑟縮〔-缩〕 sat¹ suk¹ {sè suō}

1. to curl up shivering (from cold)
2. timid and trembling (in fear)
3. to shrink
4. to cower

瑟瑟發抖〔--发-〕 sat¹ sat¹ faat³ dau² {sè sè fā dǒu}

to shiver with cold