greave
Greave (noun) means (archaic) A bush, tree, or small wood.
Etymology
Comes from Middle English greve, from Old English grǣfe, grǣfa (“bush, bramble, grove, thicket, copse, brush-wood (for burning), fuel”). It is cognate with Scots greve, greave (“grove”); compare also Proto-Germanic *grainiz (“twig”), of unknown origin, from which Old Norse grein (“branch, bough”) descends. It is closely related to Old English grāf, grāfa (“grove”). See grove.