Tre"bly(?), adv. In a treble manner; with a threefold number or quantity; triply. Swift.
Tre"buck*et(?), } n. [OF. trebuchet, trebukiet, an engine of war for hurling stones, F. trbuchet a gin, trap, a kind of balance, fr. OF. trebuchier, trebuquier, to stumble, trip, F. trbucher.] 1. A cucking stool; a tumbrel. Cowell.
2. A military engine used in the Middle Ages for throwing stones, etc. It acted by means of a great weight fastened to the short arm of a lever, which, being let fall, raised the end of the long arm with great velocity, hurling stones with much force.
3. A kind of balance for weighing.
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