English
harmonizer
From harmonize + -er.
A compound of harmonize + -er
Proto-Indo-European *h₂er- ‘to join, fit, fix together’
…
Ancient Greek ἁρμονία ‘a fitting together, joint’
Latin harmonia ‘harmony, concordance of sounds’
French harmonie ‘harmony’
French harmoniser ‘to harmonize’
English harmonize
Today it means
noun One who harmonizes or brings harmony.
Language periods are conventional ranges, not dates for this word.
Etymograph / harmonizer