wooly (adj.)youdaoicibaDictYouDict[wooly 词源字典]
also woolly, 1570s, "resembling or made of wool," from wool + -y (2). Meaning "barbarous, rude" is recorded 1891, from wild and wooly (1884) applied to the U.S. western frontier, perhaps in reference to range steers or to unkempt cowboys. Related: Wooliness.[wooly etymology, wooly origin, 英语词源]