corrugate (v.)youdaoicibaDictYouDict[corrugate 词源字典]
1620s; implied earlier as a past participle adjective (early 15c.), from Latin corrugatus, past participle of corrugare "to wrinkle very much," from com-, intensive prefix (see com-), + rugare "to wrinkle," which is of unknown origin.[corrugate etymology, corrugate origin, 英语词源]