pulsate (v.)youdaoicibaDictYouDict[pulsate 词源字典]
1741, back-formation from pulsation, from Latin pulsatus, past participle of pulsare "to beat against, strike upon" (see pulsation). Related: Pulsated; pulsating; pulsatile.[pulsate etymology, pulsate origin, 英语词源]
pulsatileyoudaoicibaDictYouDict
"Pulsating; relating to pulsation", Late Middle English: from medieval Latin pulsatilis (in vena pulsatilis 'artery'), from the verb pulsare (see pulsate).