IMPETUSES
Noun
impetuses
plural of impetus
Source: Wiktionary
IMPETUS
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