Also see definition of "Crumb" in Word Study
Crumb
CRUMB [isbe]
CRUMB - krum (psichion, "a little bit"): Occurs only in the New Testament, of remnants of food, scraps. Lazarus desired "to be fed with the crumbs that fell from the rich man's table" (Lk 16:21). "Even the (little) dogs eat of the crumbs" (Mt 15:27; Mk 7:28), "possibly the fragments of bread on which the guests wiped their hands (after thrusting them into the common dish), and flung to the dogs" (Farrar, Life of Christ, I, 476).
Also see definition of "Crumb" in Word Study