kinematics (n.) Look up kinematics at Dictionary.com
"science of motion," 1840, from French cinématique (Ampère, 1834), from Greek kinesis "movement, motion," from kinein "to move," from PIE *kie-neu-, suffixed form of root *keie- "set in motion" (see cite). Related: Kinematic (adj.), 1846; kinematical; kinematically.