sicken (v.)youdaoicibaDictYouDict[sicken 词源字典]
c. 1200, "to become ill," from sick (adj.) + -en (1). Transitive sense of "to make sick" is recorded from 1610s. Related: Sickened; sickening. The earlier verb was simply sick (Old English seocan) "to be ill, fall ill."[sicken etymology, sicken origin, 英语词源]