Triple: "treble reason for loving as well as working while it is day"(George Eliot).
Music Relating to or having the highest part, voice, or range.
High-pitched; shrill.
n.
Music
The highest part, voice, instrument, or range.
A singer or player that performs this part.
A high, shrill sound or voice.
tr. & intr.v.
treb·led, treb·ling, treb·les To make or become triple.
[Middle English, from Old French, from Medieval Latin triplum, from Latin, neuter of triplus, triple; see triple.] treb'le·ness n., treb'ly (trěb'lē) adv.
c.1374, "three times, triple," from O.Fr. treble (12c.), from L. triplus (see triple). The verb is recorded from c.1325. The noun meaning "highest part in music, soprano" is attested from c.1330, from O.Fr. treble; in early contrapuntal music, the chief melody was in the tenor, and the treble was the "third" part above it (after the alto).