treb·u·chet (trĕb′yə-shĕt) also treb·uc·ket (-ə-kĕt)
A medieval catapult for hurling stones or other heavy projectiles, often by means of a sling at the end of a long, counterweighted, swinging arm.
[Middle English, from Old French, from trebucher, to overthrow : tre-, over (from Latin trāns-; see TRANS–) + but, trunk of the body (of Germanic origin).]
(click for a larger image)trebuchet
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