miff (n.)youdaoicibaDictYouDict[miff 词源字典]
1620s, "fit of ill humor," perhaps imitative of an exclamation of disgust (compare German muffen "to sulk").[miff etymology, miff origin, 英语词源]
miff (v.)youdaoicibaDictYouDict
1797, "to take offense at;" 1811, "to put out of humor," from miff (n.). Related: miffed; miffing.