English
harmonist
From harmony + -ist.
Formed from harmony + -ist
Proto-Indo-European *h₂er- ‘to join, fit, fix together’
…
Ancient Greek ἁρμονία ‘joint, union, agreement, concord of sounds’
Latin harmonia ‘harmony, concordance of sounds’
Old French harmonie
Middle English armonye
English harmony
Today it means
noun One who shows the agreement of corresponding passages of different authors, as of the four Biblical evangelists.
Language periods are conventional ranges, not dates for this word.
Etymograph / harmonist