Stationary
来自Big Physics
late Middle English: from Latin stationarius (originally in the sense ‘belonging to a military station’), from statio(n- ) ‘standing’ (see station).
wiktionary
From Latin stationarius, from statio, ultimately from stō(“to stand”). Doublet of stationer.
etymonline
stationary (adj.)
late 14c., stacionarie, "having no apparent motion" (in reference to planets), from Old French stacioonaire "motionless" and directly from Latin stationarius, from the stem of statio "a standing, post, job, position" (see station (n.)). Meaning "unmovable" is from 1620s. In classical Latin, stationarius is recorded only in the sense "of a military station;" the word for "stationary, steady" being statarius.
