also eurhythmic, "harmonious," 1831, from Greek eurythmia "rhythmical order," from eurythmos "rhythmical, well-proportioned," from eu "well, good" (see eu-) + rhythmos "rhythm" (see rhythm). Related: Eurythmics (1912 in reference to a system of rhythmical bodily movements or dance exercises); eurythmy.[eurythmic etymology, eurythmic origin, 英语词源]