English
telharmony
From tele- + harmony.
Proto-Indo-European *kʷel- ‘to turn, revolve’
Ancient Greek τῆλε ‘at a distance, far off, far away, far from’
English tele-
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 music played and transmitted by telharmonium
Language periods are conventional ranges, not dates for this word.
Etymograph / telharmony