Definition/Meaning of trebly

• English - Adjective: trebly ( comparative treblier or more trebly , superlative trebliest or most trebly ) Having treble , or high-pitched, qualities .
• English - Adverb: trebly ( not comparable ) Three times , thrice (archaic) To three times the extent or degree; triply . 1883 , Robert Louis Stevenson , Treasure Island , Cignet Classic (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 .