means the curved path one object takes around another under the pull of gravity, or by extension a recurring sphere of influence or routine one moves within.

from From Latin 'orbita,' meaning a wheel track or rut left by a chariot wheel — itself from 'orbis,' a ring, disk, or circle. The word first rolled into English as a term for the eye socket (still 'orbit' in anatomy, the bony ring around the eye), and only later was lifted to the heavens to name the looping tracks planets carve through space — the universe, it turns out, leaves wheel ruts too.