- sediment
[sediment 词源字典]
- sediment: see session
[sediment etymology, sediment origin, 英语词源] - sediment (n.)
- 1540s, "matter which settles at the bottom of water or other liquid," from Middle French sédiment (16c.) and directly from Latin sedimentum "a settling, sinking down," from stem of sedere "to settle, sit" (see sedentary).