English
intertonic
From inter- + tonic.
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, extend’
Proto-Indo-European *tónos ‘something stretched’
Proto-Hellenic *tónos ‘rope, cord’
Ancient Greek τόνος ‘a cord, rope or string’
Ancient Greek τονικός ‘tonic, accentual’
English tonic
Today it means
noun A sound occurring between stressed syllables; as the /har/ in philharmonic
Language periods are conventional ranges, not dates for this word.
Etymograph / intertonic