Main Entry: ²treble

Function: adjective

Etymology: Middle English, from Anglo-French, from Latin triplus — more at triple

Date: 14th century

1 a : having three parts or uses : threefold b : triple in number or amount
2 a : relating to or having the range or part of a treble b : high-pitched, shrill c : of, relating to, or having the range of treble in sound recording and broadcasting <treble frequencies>

— tre·bly \ˈtre-b(ə-)lē\ adverb