An Etymological Dictionary of the German Language, B (1891)
by Friedrich Kluge, translated by John Francis Davis
-bold
Friedrich Kluge2506373An Etymological Dictionary of the German Language, B — -bold1891John Francis Davis

-bold, in compounds like Raufbold, Witzbold, &c., from MidHG. bolt, gen. boldes; it is the unaccented form of the MidHG. adj. balt, ‘bold,’ which is discussed under bald.