trebly

English

Etymology

From treble +‎ -ly.

Adjective

trebly (comparative treblier or more trebly, superlative trebliest or most trebly)

  1. Having treble, or high-pitched, qualities.
    • 2024, Scott Alexander Howard, The Other Valley, Atlantic Books (2025), page 162:
      With the room so bare, Ivret’s voice sounded different, trebly echoes ringing off her sibilants.

Adverb

trebly (not comparable)

  1. (archaic) Three times, thrice
  2. To three times the extent or degree; triply.
    • 1883, Robert Louis Stevenson, Treasure Island, Cignet Classic, published 1998, page 13:
      For my part, I must do my best to save this fellow's trebly worthless life; Jim, you get me a basin.
    • 1958 January, 'Borderer', “Ten Years of British Railways”, in Railway Magazine, page 12:
      The task was made trebly difficult, however, by the badly run-down condition in which the railways of Britain had been unavoidably left at the end of the war in 1945, [] .

Synonyms