groyne (n.)youdaoicibaDictYouDict[groyne 词源字典]
"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").[groyne etymology, groyne origin, 英语词源]