Noah Webster
Impulse
IM'PULSE, noun im'puls. [Latin impulsus, from impello. See Impel.]
1. Force communicated; the effect of one body acting on another. impulse is the effect of motion, and is in proportion to the quantity of matter and velocity of the impelling body.
2. Influence acting on the mind; motive.
These were my natural impulses for the undertaking.
3. Impression; supposed supernatural influence on the mind.
Meantime, by Jove's impulse Mezentius armed,
Succeeded Turnus--