crag
/kræg/noun
1
- a steep or rugged cliff or rock face险崖。
2
- mass noun Geology a shelly sandstone occurring in eastern England【地质】(存在于英格兰东部的)砂质泥灰岩。
词源
Middle English: of Celtic origin. Sense 2, dating from the mid 18th cent., may have been a different word originally.