Crumble \Crum"ble\ (kr?m"b'l), v. t. [imp. & p. p. Crumbled (-b'ld); p. pr. & vb. n. Crumbling (-bl?ng).]

[Dim. of crumb, v. t., akin to D. krimelen G. kr?meln.]

To break into small pieces; to cause to fall in pieces.

He with his bare wand can unthread thy joints, And crumble all thy sinews. --Milton.

Source: Webster's Revised Unabridged Dictionary (1913)