Middle English armony, from Anglo-French armonie, from Latin harmonia, from Greek, joint, harmony, from harmos joint — more at arm
Date: 14th century
1 archaic : tuneful sound : melody
2 a: the combination of simultaneous musical notes in a chord b: the structure of music with respect to the composition and progression of chords c: the science of the structure, relation, and progression of chords
3 a: pleasing or congruent arrangement of parts b: correspondence , accord
4 a: an interweaving of different accounts into a single narrative b: a systematic arrangement of parallel literary passages (as of the Gospels) for the purpose of showing agreement or harmony.