IMPETUS
impulse, impulsion, impetus
(noun) the act of applying force suddenly; “the impulse knocked him over”
drift, impetus, impulsion
(noun) a force that moves something along
Source: WordNet® 3.1
Etymology
Noun
impetus (plural impetuses)
Something that impels; a stimulating factor.
A force, either internal or external, that impels; an impulse.
The force or energy associated with a moving body; a stimulus.
An activity in response to a stimulus.
Anagrams
• imputes, stumpie, time's up, uptimes
Source: Wiktionary
Im"pe*tus, n. Etym: [L., fr. impetere to rush upon, attack; pref. im-
in + petere to fall upon, seek. See Petition.]
1. A property possessed by a moving body in virtue of its weight and
its motion; the force with which any body is driven or impelled;
momentum.
Note: Momentum is the technical term, impetus its popular equivalent,
yet differing from it as applied commonly to bodies moving or moved
suddenly or violently, and indicating the origin and intensity of the
motion, rather than its quantity or effectiveness.
2. Fig.: Impulse; incentive; vigor; force. Buckle.
3. (Gun.)
Definition: The aititude through which a heavy body must fall to acquire a
velocity equal to that with which a ball is discharged from a piece.
Source: Webster’s Unabridged Dictionary 1913 Edition