Etymology
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weevil (n.)

Old English wifel "small beetle," from Proto-Germanic *webilaz (source also of Old Saxon wibil, Old High German wibil, German Wiebel "beetle, chafer," Old Norse tordyfill "dung beetle"), cognate with Lithuanian vabalas "beetle," from PIE root *(h)uebh- "to weave," also "to move quickly" (see weave (v.)). The sense gradually narrowed by 15c. to a particular kind of beetle that, in larval or adult stages, bores into plants, often destroying them.

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Definitions of weevil

weevil (n.)
any of several families of mostly small beetles that feed on plants and plant products; especially snout beetles and seed beetles;
From wordnet.princeton.edu