Trebly

With the room so bare, Ivret’s voice sounded different, trebly echoes ringing off her sibilants.

For my part, I must do my best to save this fellow's trebly worthless life; Jim, you get me a basin.

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, […].