- (rare, historical) The white shield that was the mark of novice knights, especially in Arthurian legend.
- Mid-16th century, Anonymous, The Harleian Manuscript, page 24:
- xxijth daye of Maie, there shall be a grene tree sett up in the lawnde of Grenwich parke; whereuppon shall hange, by a grene lace, a Vergescu Blanke, in which white shield it shalbe[sic] lawfull for any gentleman that will annswear this chalenge ensewing to subscribe his name.
- 2011, Lev Grossman, The Magician King, page 114:
- They should have been facing down bellowed challenges from black knights bearing the vergescu, or solving thorny theological dilemmas posed by holy hermits. Or at the very least resisting the diabolical temptations of ravishing succubi.