'Static' is Greek for 'causing to stand' — from PIE *steh-. One of the biggest root families in IE.
Lacking movement, action, or change; in physics, relating to bodies at rest or forces in equilibrium.
From New Latin staticus (relating to equilibrium, causing to stand), from Greek statikos (causing to stand, skilled at weighing), from the verb histanai (to make stand, to set up, to weigh), from PIE *steh2- (to stand), one of the most productive roots in the entire Indo-European language family. The PIE root *steh2- generated Latin stare (to stand), producing station, stable, state, statue, stature, status, constitute, institute, prostitute, substance, obstacle, and circumstance. From the Greek branch: system (from histanai via synistanai),
The PIE root *steh₂- (to stand) is among the most prolific in all of Indo-European, generating over 500 English words including 'stand,' 'state,' 'station,' 'statue,' 'stable,' 'establish,' 'understand,' 'substance,' 'circumstance,' 'institute,' 'prostitute,' 'obstacle,' 'ecstasy,' and even 'armistice' — all from the single concept of standing still.