Meaning

adverb with reference to action or condition; without change, interruption, or cessation

adjective not in physical motion

noun a static photograph (especially one taken from a movie and used for advertising purposes)

originFrom Middle English stille (“motionless, stationary”), from Old English stille (“still, quiet”), from Proto-West Germanic *stillī, from Proto-Indo-European *(s)telH- (“to be silent; to be still”). Cognate with Scots stil (“still”), Saterland Frisian stil (“motionless, calm, quiet”), West Frisian stil (“quiet, still”), Dutch stil (“quiet, silent, still”), Low German still (“quiet, silent, still”),…

Etymology from Wiktionary, CC BY-SA 3.0