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pulsate (v.)[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]
pulsatile: "Pulsating; relating to pulsation", Late Middle English: from medieval Latin pulsatilis (in vena pulsatilis 'artery'), from the verb pulsare (see pulsate).