maleficence (n.)youdaoicibaDictYouDict[maleficence 词源字典]
1590s, from Middle French maleficence or directly from Latin maleficentia "evildoing, mischievousness, injury," from maleficus "wicked" (see malefic). Now largely displaced by malfeasance.[maleficence etymology, maleficence origin, 英语词源]
mischievous (adj.)youdaoicibaDictYouDict
early 14c., "unfortunate, disastrous," probably from mischief + -ous. Sense of "playfully malicious or annoying" first recorded 1670s. Related: Mischievously; mischievousness.