English
intertone
From inter- + tone.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *ten- ‘to stretch’
…
Proto-Hellenic *tónos ‘tension’
Ancient Greek τόνος ‘strain, tension, pitch’
Latin tonus ‘sound, tone’
Middle English ton ‘tone, sound’
English tone
Today it means
adj Between tones
Language periods are conventional ranges, not dates for this word.
Etymograph / intertone