arrhythmic (adj.)youdaoicibaDictYouDict[arrhythmic 词源字典]
1853, "without rhythm," in relation to musical sensibility, Modern Latin, from Greek arrhythmos "irregular, unrhythmical, without measure," from a- "not" (see a- (3)) + rhythmos (see rhythm). Medical arrhythmia "irregularity of pulse" is attested from 1888, from Greek noun of action from arrhythmos. Related: Arrhythmically.[arrhythmic etymology, arrhythmic origin, 英语词源]
eurythmic (adj.)youdaoicibaDictYouDict
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.
lilt (v.)youdaoicibaDictYouDict
1510s, "to lift up" (the voice), probably from late 14c. West Midlands dialect lulten "to sound an alarm," of unknown origin. Possible relatives include Norwegian lilla "to sing" and Low German lul "pipe." It is possible that the whole loose group is imitative. Sense of "sing in a light manner" is first recorded 1786. Related: Lilted; lilting. As a noun, 1728, "lilting song," from the verb. As "rhythmical cadence," 1840.
modulation (n.)youdaoicibaDictYouDict
late 14c., "act of singing or making music," from Old French modulation "act of making music" (14c.), or directly from Latin modulationem (nominative modulatio) "rhythmical measure, singing and playing, melody," noun of action from past participle stem of modulari "regulate, measure off properly, measure rhythmically; play, play upon," from modulus (see module). Meaning "act of regulating according to measure or proportion" is from 1530s. Musical sense of "action of process of changing key" is first recorded 1690s.
rhythmic (adj.)youdaoicibaDictYouDict
1560s, from French rhythmique or directly from Latin rhythmicus, from Greek rhythmikos, from rhythmos (see rhythm). Related: Rhythmical; rhythmically.
eurhythmicsyoudaoicibaDictYouDict
"A system of rhythmical physical movements to music used to teach musical understanding (especially in Steiner schools) or for therapeutic purposes, evolved by Émile Jaques-Dalcroze", Early 20th century: from eu- 'well' + rhythm + -ics.