IMPULSE Copy link • IMPULSEThe act of impelling, impulsus: impulsio (a driving on, impelling): incitatio (an exciting, inciting): external impulse, impulse from without, pulsus externus. Internal impulse, impetus: vis. By the impulse of one’s own mind, sua sponte, or sponte only (of one’s own free will): ultro (with a good will; willingly): “by anybody’s impulse” (e.g., Jove’s: Dryden), aliquo impulsore or auctore; alicujus impulsu; alicujus auctoritate; also, aliquo impellente: by the impulse of another, alieno impulsu: under a divine impulse [Vid: INSPIRATION]. Internal and instinctive desire, appetitio (desire after anything; e.g. cognitionis): appetitus (a feeling of a natural want; instinct: ☞ not instinctus, in this sense, in classical writers): impetus (a vehement desire, involuntary motion toward anything). (The words are found in this connection and order.) impetus et appetitus rerum - cupiditas (a longing for anything): to feel a natural impulse toward anything, studio alicujus rei duci or impelli; appetere or concupiscere aliquid.