An Etymological Dictionary of Astronomy and Astrophysics

Moving together or in a correlated way.

Etymology (EN): From → com- “together,” + pr.p. of → move.

Etymology (PE): Hamjonb, ham-miyâv “comoving,” from ham- “together,” → com-, + jonb or miyav
“moving, mover,” present stems of jondidan and miyâvidan “→ move.”