Dynamics
来自Big Physics
early 19th century (as a term in physics): from French dynamique, from Greek dunamikos, from dunamis ‘power’.
wiktionary
From dynamic + -ics.
etymonline
dynamics (n.)
as a branch of physics that calculates motions in accordance with the laws of force, by 1752, from dynamic (adj.); also see -ics. As "the moving physical or moral force in anything," by 1833.
