[mel.o.dy] n, pl -dies [ME melodie, fr. OF, fr. LL melodia, fr. Gk meloidia chanting, music, fr. melos limb, musical phrase, song (prob. akin to Bret mell joint) + aeidein to sing--more at ode] (13c) 1: a sweet or agreeable succession or arrangement of sounds: tunefulness
2: a rhythmic succession of single tones organized as an aesthetic whole