palpitation (n.)youdaoicibaDictYouDict[palpitation 词源字典]
early 15c., from Middle French palpitation, from Latin palpitationem (nominative palpitatio), noun of action from past participle stem of palpitare "to throb, to flutter, to tremble, to quiver," frequentative of palpare "touch gently, stroke; wheedle, coax" (see feel (v.)).[palpitation etymology, palpitation origin, 英语词源]