English
trebleness
From treble + -ness.
Formed from treble + -ness
Proto-Indo-European *tri- ‘three, threefold’
…
Proto-Italic *triplos ‘threefold, triple’
Latin triplus ‘threefold, triple’
Old French treble
Middle English treble
English treble
Today it means
noun The quality or state of being treble.
Language periods are conventional ranges, not dates for this word.
Etymograph / trebleness