genus of small evergreen trees, Old English, from Latin buxus, from Greek pyxos "box tree," which is of uncertain origin. Beekes suggests a loan-word from Italy, as that is where the tree is native. Compare box (n.1).
Old English wudu, earlier widu "tree, trees collectively, forest, grove; the substance of which trees are made," from Proto-Germanic *widu- (source also of Old Norse viðr, Danish and Swedish ved "tree, wood," Old High German witu "wood"), from PIE *widhu- "tree, wood" (source also of Welsh gwydd "trees," Gaelic fiodh- "wood, timber," Old Irish fid "tree, wood"). Out of the woods "safe" is from 1792.
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Definitions of boxwood from WordNet
very hard tough close-grained light yellow wood of the box (particularly the common box); used in delicate woodwork: musical instruments and inlays and engraving blocks;