pecking (n.)youdaoicibaDictYouDict[pecking 词源字典]
verbal noun from peck (v.), late 14c. As a behavior among hens, pecking order (1928) translates German hackliste (T.J. Schjelderuo-Ebbe, 1922); transferred sense of "human hierarchy based on rank or status" is from 1955.[pecking etymology, pecking origin, 英语词源]