groyne 丁坝（防止海浪侵蚀海滩岩石的矮墙）来自废词groin, 猪鼻子，因形似拱起的猪鼻子而得名。来自grunt, 咕哝，拟声词。
- groyne (n.)
- "strong, low sea wall," 1580s, perhaps from obsolete groin "pig's snout" (c. 1300; the wall so called because it was thought to look like one), from Old French groin "muzzle, snout; promontory, jutting part," from Latin grunnire "to grunt" (compare English colloquial grunter "a pig").
