formication (n.)youdaoicibaDictYouDict[formication 词源字典]
crawling sensation as of ants on the skin, 1707, from Latin formicationem (nominative formicatio), noun of action from formicare "to crawl like ants," from formica "ant" (see Formica (n.2)).[formication etymology, formication origin, 英语词源]